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Wednesday, August 19, 2020

Flat-panel display

From Wikipedia, the free encyclopedia
 
A flat-panel display (FPD) is an electronic viewing device used to enable people to see content (still images, moving images, text, or other visual material) in a range of entertainment, consumer electronics, personal computer, and mobile devices, and many types of medical, transportation and industrial equipment. They are far lighter and thinner than traditional cathode ray tube (CRT) television sets and are usually less than 10 centimetres (3.9 in) thick. Flat-panel displays can be divided into two display device categories: volatile and static. Volatile displays require that pixels be periodically electronically refreshed to retain their state (e.g. liquid-crystal displays (LCD)). A volatile display only shows an image when it has battery or AC mains power. Static flat-panel displays rely on materials whose color states are bistable (e.g., e-book reader tablets from Sony), and as such, flat-panel displays retain the text or images on the screen even when the power is off. As of 2016, flat-panel displays have almost completely replaced old CRT displays. In many 2010-era applications, specifically small portable devices such as laptops, mobile phones, smartphones, digital cameras, camcorders, point-and-shoot cameras, and pocket video cameras, any display disadvantages of flat-panels (as compared with CRTs) are made up for by portability advantages (low power consumption from batteries, thinness and lightweightness).

Most 2010s-era flat-panel displays use LCD and/or light emitting diode (LED) technologies. Most LCD screens are back-lit as color filters are used to display colors. Flat-panel displays are thin, lightweight, provide better linearity and are capable of higher resolution than typical consumer-grade TVs from earlier eras. The highest resolution for consumer-grade CRT TVs was 1080i; in contrast, many flat-panels can display 1080p or even 4K resolution. As of 2016, some devices that use flat-panels, such as tablet computers, smartphones and, less commonly, laptops, use touchscreens, a feature that enables users to select onscreen icons or trigger actions (e.g., playing a digital video) by touching the screen. Many touchscreen-enabled devices can display a virtual QWERTY or numeric keyboard on the screen, to enable the user to type words or numbers.

A multifunctional monitor (MFM) is a flat-panel display that has additional video inputs (more than a typical LCD monitor) and is designed to be used with a variety of external video sources, such as VGA input, HDMI input from a VHS VCR or video game console and, in some cases, a USB input or card reader for viewing digital photos. In many instances, an MFM also includes a TV tuner, making it similar to a LCD TV that offers computer connectivity.

History

The first engineering proposal for a flat-panel TV was by General Electric in 1954 as a result of its work on radar monitors. The publication of their findings gave all the basics of future flat-panel TVs and monitors. But GE did not continue with the R&D required and never built a working flat panel at that time. The first production flat-panel display was the Aiken tube, developed in the early 1950s and produced in limited numbers in 1958. This saw some use in military systems as a heads up display and as an oscilloscope monitor, but conventional technologies overtook its development. Attempts to commercialize the system for home television use ran into continued problems and the system was never released commercially.

The Philco Predicta featured a relatively flat (for its day) cathode ray tube setup and would be the first commercially released "flat panel" upon its launch in 1958; the Predicta was a commercial failure. The plasma display panel was invented in 1964 at the University of Illinois, according to The History of Plasma Display Panels.

LCD displays

The MOSFET (metal-oxide-semiconductor field-effect transistor, or MOS transistor) was invented by Mohamed M. Atalla and Dawon Kahng at Bell Labs in 1959, and presented in 1960. Building on their work, Paul K. Weimer at RCA developed the thin-film transistor (TFT) in 1962. It was a type of MOSFET distinct from the standard bulk MOSFET. The idea of a TFT-based LCD was conceived by Bernard J. Lechner of RCA Laboratories in 1968. B.J. Lechner, F.J. Marlowe, E.O. Nester and J. Tults demonstrated the concept in 1968 with a dynamic scattering LCD that used standard discrete MOSFETs.

The first active-matrix addressed electroluminescent display (ELD) was made using TFTs by T. Peter Brody's Thin-Film Devices department at Westinghouse Electric Corporation in 1968. In 1973, Brody, J. A. Asars and G. D. Dixon at Westinghouse Research Laboratories demonstrated the first thin-film-transistor liquid-crystal display (TFT LCD). Brody and Fang-Chen Luo demonstrated the first flat active-matrix liquid-crystal display (AM LCD) using TFTs in 1974.

By 1982, pocket LCD TVs based on LCD technology were developed in Japan. The 2.1-inch Epson ET-10 Epson Elf was the first color LCD pocket TV, released in 1984. In 1988, a Sharp research team led by engineer T. Nagayasu demonstrated a 14-inch full-color LCD display, which convinced the electronics industry that LCD would eventually replace CRTs as the standard television display technology. As of 2013, all modern high-resolution and high-quality electronic visual display devices use TFT-based active-matrix displays.

LED displays

The first usable LED display was developed by Hewlett-Packard (HP) and introduced in 1968. It was the result of research and development (R&D) on practical LED technology between 1962 and 1968, by a research team under Howard C. Borden, Gerald P. Pighini, and Mohamed M. Atalla, at HP Associates and HP Labs. In February 1969, they introduced the HP Model 5082-7000 Numeric Indicator. It was the first alphanumeric LED display, and was a revolution in digital display technology, replacing the Nixie tube for numeric displays and becoming the basis for later LED displays. In 1977, James P Mitchell prototyped and later demonstrated what was perhaps the earliest monochromatic flat panel LED television display. 

Ching W. Tang and Steven Van Slyke at Eastman Kodak built the first practical organic LED (OLED) device in 1987. In 2003, Hynix produced an organic EL driver capable of lighting in 4,096 colors. In 2004, the Sony Qualia 005 was the first LED-backlit LCD display.[25] The Sony XEL-1, released in 2007, was the first OLED television.

Common types

Liquid crystal display (LCD)

An LCD screen used as an information display for travellers.

LCDs are lightweight, compact, portable, cheap, more reliable, and easier on the eyes than CRT screens. LCD screens use a thin layer of liquid crystal, a liquid that exhibits crystalline properties. It is sandwiched between two electrically conducting plates. The top plate has transparent electrodes deposited on it, and the back plate is either fitted with a reflector or is illuminated from behind so that the viewer can see the images on the screen. By applying controlled electrical signals across the plates, various segments of the liquid crystal can be activated, causing changes in their light diffusing or polarizing properties. These segments can either transmit or block light. An image is produced by passing light through selected segments of the liquid crystal to the viewer. They are used in various electronics like watches, calculators, and notebook computers.

LCD with backlit light-emitting diode (LED)

Some LCD screens are back-lit with a number of LEDs. LEDs are two-lead semiconductor light sources. The image is still generated by the LCD. LED-backlit LCD displays are the most prevalent in the 2010s.

Plasma panel

A plasma display consists of two glass plates separated by a thin gap filled with a gas such as neon. Each of these plates has several parallel electrodes running across it. The electrodes on the two plates are at right angles to each other. A voltage applied between the two electrodes one on each plate causes a small segment of gas at the two electrodes to glow. The glow of gas segments is maintained by a lower voltage that is continuously applied to all electrodes. By 2010, consumer plasma displays had been discontinued by numerous manufacturers.

Electroluminescent panel

In an electroluminescent display (ELD), the image is created by applying electrical signals to the plates which makes the phosphor glow.

Organic light-emitting diode

An OLED (organic light-emitting diode) is a light-emitting diode (LED) in which the emissive electroluminescent layer is a film of organic compound which emits light in response to an electric current. This layer of organic semiconductor is situated between two electrodes; typically, at least one of these electrodes is transparent. OLEDs are used to create digital displays in devices such as television screens, computer monitors, portable systems such as mobile phones, handheld game consoles and PDAs.

Quantum dot light emitting diode

QLED or quantum dot LED is a flat panel display technology introduced by Samsung under this trademark. Other television set manufacturers such as Sony have used the same technology to enhance the backlighting of LCD TVs already in 2013.  Quantum dots create their own unique light when illuminated by a light source of shorter wavelength such as blue LEDs. This type of LED TV enhances the color gamut of LCD panels, where the image is still generated by the LCD. In the view of Samsung, quantum dot displays for large-screen TVs are expected to become more popular than the OLED displays in the coming years; Firms like Nanoco and Nanosys compete to provide the QD materials. In the meantime, Samsung Galaxy devices such as smartphones are still equipped with OLED displays manufactured by Samsung as well. Samsung explain on their website that the QLED TV they produce can determine what part of the display needs more or less contrast. Samsung also announced a partnership with Microsoft that will promote the new Samsung QLED TV.

Volatile

A large LED display at the Taipei Arena displays commercials and movie trailers.

Volatile displays require that pixels be periodically refreshed to retain their state, even for a static image. As such, a volatile screen needs electrical power, either from mains electricity (being plugged into a wall socket) or a battery to maintain an image on the display or change the image. This refresh typically occurs many times a second. If this is not done, for example, if there is a power outage, the pixels will gradually lose their coherent state, and the image will "fade" from the screen.

Examples

The following flat-display technologies have been commercialized in 1990s to 2010s:
Technologies that were extensively researched, but their commercialization was limited or has been ultimately abandoned:

Static

Amazon's Kindle Keyboard e-reader displaying a page of an e-book. The Kindle's image of the book's text will remain onscreen even if the battery runs out, as it is a static screen technology. Without power, however, the user cannot change to a new page.
 
Static flat-panel displays rely on materials whose color states are bistable. This means that the image they hold requires no energy to maintain, but instead requires energy to change. This results in a much more energy-efficient display, but with a tendency toward slow refresh rates which are undesirable in an interactive display. Bistable flat-panel displays are beginning deployment in limited applications (cholesteric liquid crystal displays, manufactured by Magink, in outdoor advertising; electrophoretic displays in e-book reader devices from Sony and iRex; anlabels; interferometric modulator displays in a smartwatch).

Television show

From Wikipedia, the free encyclopedia

A live television show set and cameras

A television show (often simply TV show) is any content produced for viewing on a television set and broadcast via over-the-air, satellite, cable, - excluding breaking news, advertisements, or trailers that are typically placed between shows. Television shows are most often scheduled for broadcast well ahead of time and appear on electronic guides or other TV listings, but streaming services often make them available for viewing anytime.

A television show is also called a television program (British English: programme), especially if it lacks a narrative structure. A television series is usually released in episodes that follow a narrative, and are usually divided into seasons (US and Canada) or series (UK) – yearly or semiannual sets of new episodes. A show with a limited number of episodes may be called a miniseries, serial, or limited series. A one-time show may be called a "special". A television film ("made-for-TV movie" or "television movie") is a film that is initially broadcast on television rather than released in theaters or direct-to-video

Television shows can be viewed as they are broadcast in real time (live), be recorded on home video or a digital video recorder for later viewing, or be viewed on demand via a set-top box or streamed over the internet.

History

The first television shows were experimental, sporadic broadcasts viewable only within a very short range from the broadcast tower starting in the 1930s. Televised events such as the 1936 Summer Olympics in Germany, the 1937 coronation of King George VI in the UK, and David Sarnoff's famous introduction at the 1939 New York World's Fair in the US spurred a growth in the medium, but World War II put a halt to development until after the war. The 1947 World Series inspired many Americans to buy their first television set and then in 1948, the popular radio show Texaco Star Theater made the move and became the first weekly televised variety show, earning host Milton Berle the name "Mr Television" and demonstrating that the medium was a stable, modern form of entertainment which could attract advertisers. The first national live television broadcast in the US took place on September 4, 1951 when President Harry Truman's speech at the Japanese Peace Treaty Conference in San Francisco was transmitted over AT&T's transcontinental cable and microwave radio relay system to broadcast stations in local markets.

The first national color broadcast (the 1954 Tournament of Roses Parade) in the US occurred on January 1, 1954. During the following ten years most network broadcasts, and nearly all local programming, continued to be in black-and-white. A color transition was announced for the fall of 1965, during which over half of all network prime-time programming would be broadcast in color. The first all-color prime-time season came just one year later. In 1972, the last holdout among daytime network shows converted to color, resulting in the first completely all-color network season.

Formats and genres

Television shows are more varied than most other forms of media due to the wide variety of formats and genres that can be presented. A show may be fictional (as in comedies and dramas), or non-fictional (as in documentary, news, and reality television). It may be topical (as in the case of a local newscast and some made-for-television films), or historical (as in the case of many documentaries and fictional series). They could be primarily instructional or educational, or entertaining as is the case in situation comedy and game shows.

A drama program usually features a set of actors playing characters in a historical or contemporary setting. The program follows their lives and adventures. Before the 1980s, shows (except for soap opera-type serials) typically remained static without story arcs, and the main characters and premise changed little.[citation needed] If some change happened to the characters' lives during the episode, it was usually undone by the end. Because of this, the episodes could be broadcast in any order.[citation needed] Since the 1980s, many series feature progressive change in the plot, the characters, or both. For instance, Hill Street Blues and St. Elsewhere were two of the first American prime time drama television series to have this kind of dramatic structure while the later series Babylon 5 further exemplifies such structure in that it had a predetermined story running over its intended five-season run. In 2012, it was reported that television was growing into a larger component of major media companies' revenues than film. Some also noted the increase in quality of some television programs. In 2012, Academy-Award-winning film director Steven Soderbergh, commenting on ambiguity and complexity of character and narrative, stated: "I think those qualities are now being seen on television and that people who want to see stories that have those kinds of qualities are watching television."

Production

Development

United States

When a person or company decides to create a new series, they develop the show's elements, consisting of the concept, the characters, the crew, and cast. Then they often "pitch" it to the various networks in an attempt to find one interested enough to order a prototype first episode of the series, known as a pilot. Eric Coleman, an animation executive at Disney, told an interviewer, "One misconception is that it's very difficult to get in and pitch your show, when the truth is that development executives at networks want very much to hear ideas. They want very much to get the word out on what types of shows they're looking for."

To create the pilot, the structure and team of the whole series must be put together. If audiences respond well to the pilot, the network will pick up the show to air it the next season (usually Fall). Sometimes they save it for mid-season, or request rewrites and additional review (known in the industry as development hell). Other times, they pass entirely, forcing the show's creator to "shop it around" to other networks. Many shows never make it past the pilot stage.

The show hires a stable of writers, who usually work in parallel: the first writer works on the first episode, the second on the second episode, etc. When all the writers have been used, episode assignment starts again with the first writer. On other shows, however, the writers work as a team. Sometimes they develop story ideas individually, and pitch them to the show's creator, who folds them together into a script and rewrites them.

If the show is picked up, the network orders a "run" of episodes—usually only six or 13 episodes at first, though a season typically consists of at least 22 episodes. The midseason seven and last nine episodes are sometimes called the "mid-seven" and "back nine"—borrowing the colloquial terms from bowling and golf.

United Kingdom

The method of "team writing" is employed on some longer dramatic series (usually running up to a maximum of around 13 episodes). The idea for such a program may be generated "in-house" by one of the networks; it could originate from an independent production company (sometimes a product of both). For example, the BBC's long-running soap opera EastEnders is wholly a BBC production, whereas its popular drama Life on Mars was developed by Kudos in association with the broadcaster.

There are still a significant number of programs (usually sitcoms), however, that are built by just one or two writers and a small, close-knit production team. These are "pitched" in the traditional way, but since the creators handle all the writing requirements, there is a run of six or seven episodes per series once approval has been given. Many of the most popular British comedies have been made this way, including Monty Python's Flying Circus (albeit with an exclusive team of six writer-performers), Fawlty Towers, Blackadder and The Office.

Other nations

The production company is often separate from the broadcaster. The executive producer, often the show's creator, is in charge of running the show. They pick the crew and help cast the actors, approve and sometimes write series plots—some even write or direct major episodes—while various other producers help to ensure that the show runs smoothly. Very occasionally, the executive producer will cast themselves in the show. As with filmmaking or other electronic media production, producing of an individual episode can be divided into three parts: pre-production, principal photography, and post-production.




Estonia also has television and it has been active for many years as seen by all the years in estonian television: https://en.wikipedia.org/wiki/List_of_years_in_Estonian_television

Pre-production

Arthur Schlesinger Jr.

Pre-production begins when a script is approved. A director is chosen to plan the episode's final look.
Pre-production tasks include storyboarding; construction of sets, props, and costumes; casting guest stars; budgeting; acquiring resources like lighting, special effects, stunts, etc. Once the show is planned, it must then be scheduled: scenes are often filmed out of sequence, guest actors or even regulars may only be available at certain times. Sometimes the principal photography of different episodes must be done at the same time, complicating the schedule (a guest star might shoot scenes from two episodes on the same afternoon). Complex scenes are translated from storyboard to animatics to further clarify the action. Scripts are adjusted to meet altering requirements.

Some shows have a small stable of directors, but also usually rely on outside directors. Given the time constraints of broadcasting, a single show might have two or three episodes in pre-production, one or two episodes in principal photography, and a few more in various stages of post-production. The task of directing is complex enough that a single director can usually not work on more than one episode or show at a time, hence the need for multiple directors.

Principal photography

Principal photography is the actual filming of the episode. Director, actors and crew gather at a television studio or on location for filming or videoing a scene. A scene is further divided into shots, which should be planned during pre-production. Depending on scheduling, a scene may be shot in non-sequential order of the story. Conversations may be filmed twice from different camera angles, often using stand-ins, so one actor might perform all their lines in one set of shots, and then the other side of the conversation is filmed from the opposite perspective. To complete a production on time, a second unit may be filming a different scene on another set or location at the same time, using a different set of actors, an assistant director, and a second unit crew. A director of photography supervises the lighting of each shot to ensure consistency.

Live events are usually covered by Outside Broadcast crews using mobile television studios, known as scanners or OB trucks. Although varying greatly depending on the era and subject covered, these trucks were normally crewed by up to 15 skilled operators and production personnel. In the UK for most of the 20th century, the BBC was the preeminent provider of outside broadcast coverage. BBC crews worked on almost every major event, including Royal weddings and funerals, major political and sporting events, and even drama programmes.

Post-production

Once principal photography is complete, producers coordinate tasks to begin the video editing. Visual and digital video effects are added to the film; this is often outsourced to companies specializing in these areas. Often music is performed with the conductor using the film as a time reference (other musical elements may be previously recorded). An editor cuts the various pieces of film together, adds the musical score and effects, determines scene transitions, and assembles the completed show.

Budgets and revenues

Most television networks throughout the world are 'commercial', dependent on selling advertising time or acquiring sponsors. Broadcasting executives' main concern over their programming is on audience size. Once the number of 'free to air' stations was restricted by the availability of channel frequencies, but cable TV (outside the United States, satellite television) technology has allowed an expansion in the number of channels available to viewers (sometimes at premium rates) in a much more competitive environment.

In the United States, the average broadcast network drama costs $3 million an episode to produce, while cable dramas cost $2 million on average. The pilot episode may be more expensive than a regular episode. In 2004, Lost's two-hour pilot cost $10 to $14 million, in 2008 Fringe's two-hour pilot cost $10 million, and in 2010, Boardwalk Empire was $18 million for the first episode. In 2011, Game of Thrones was $5 to $10 million, Pan Am cost an estimated $10 million, while Terra Nova's two-hour pilot was between $10 to $20 million.

Many scripted network television shows in the United States are financed through deficit financing: a studio finances the production cost of a show and a network pays a license fee to the studio for the right to air the show. This license fee does not cover the show's production costs, leading to the deficit. Although the studio does not make its money back in the original airing of the show, it retains ownership of the show. This ownership retention allows the studio to make its money back and earn a profit through syndication and sales of DVDs and Blu-rays. This system places most of the financial risk on the studios, however a show that is a hit in the syndication and home video markets can more than make up for the misses. Although the deficit financing system places minimal financial risk on the networks, they lose out on the future profits of big hits since they are only licensing the shows.

Costs are recouped mainly by advertising revenues for broadcast networks and some cable channels, while other cable channels depend on subscription revenues. In general, advertisers, and consequently networks that depend on advertising revenues, are more interested in the number of viewers within the 18–49 age range than the total number of viewers. Advertisers are willing to pay more to advertise on shows successful with young adults because they watch less television and are harder to reach than older adults. According to Advertising Age, during the 2007–08 season, Grey's Anatomy was able to charge $419,000 per commercial, compared to only $248,000 for a commercial during CSI, despite CSI having almost five million more viewers on average. Due to its strength in young demos, Friends was able to charge almost three times as much for a commercial as Murder, She Wrote, even though the two series had similar total viewer numbers during the seasons they were on the air together. Glee and The Office drew fewer total viewers than NCIS during the 2009–10 season, but earned an average of $272,694 and $213,617 respectively, compared to $150,708 for NCIS.

Distribution

After production, the show is handed over to the television network, which sends it out to its affiliate stations, which broadcast it in the specified broadcast programming time slot. If the Nielsen ratings are good, the show is kept alive as long as possible. If not, the show is usually canceled. The show's creators are then left to shop around remaining episodes, and the possibility of future episodes, to other networks. On especially successful series, the producers sometimes call a halt to a series on their own like Seinfeld, The Cosby Show, Corner Gas, and M*A*S*H and end it with a concluding episode, which sometimes is a big series finale.

On rare occasions, a series that has not attracted particularly high ratings and has been canceled can be given a reprieve if home video viewership has been particularly strong. This has happened in the cases of Family Guy in the US and Peep Show in the UK.

In the United States, if the show is popular or lucrative, and a minimum number of episodes (usually 100) have been made, it can go into broadcast syndication, where rights to broadcast the program are then resold for cash or put into a barter exchange (offered to an outlet for free in exchange for airing additional commercials elsewhere in the station's broadcast day).

Seasons/series

The terminology used to define a set of episodes produced by a television series varies from country to country.

North American usage

In North American television, a series is a connected set of television program episodes that run under the same title, possibly spanning many seasons. Since the late 1960s, this broadcast programming schedule typically includes between 20 and 26 episodes. Before then, a regular television season could average at least 30 episodes, and some TV series may have had as many as 39 episodes in a season.

Until the 1980s, most (but certainly not all) new programs for the American broadcast networks debuted in the "fall season", which ran from September through March and nominally contained from 24 to 26 episodes. These episodes were rebroadcast during the spring (or summer) season, from April through August. Because of cable television and the Nielsen sweeps, the "fall" season now normally extends to May. Thus, a "full season" on a broadcast network now usually runs from September through May for at least 22 episodes.

A full season is sometimes split into two separate units with a hiatus around the end of the calendar year, such as the first season of Jericho on CBS. When this split occurs, the last half of the episodes sometimes are referred to with the letter B as in "The last nine episodes (of The Sopranos) will be part of what is being called either "Season 6, Part 2" or "Season 6B", or in "Futurama is splitting its seasons similar to how South Park does, doing half a season at a time, so this is season 6B for them." Since the 1990s, these shorter seasons also have been referred to as ".5" or half seasons, where the run of shows between September and December is labeled "Season X", and the second run between January and May labeled "Season X.5". Examples of this include the 2004 incarnation of Battlestar Galactica, ABC's FlashForward, Fox Kids's Rhino Man: The Series and ABC Family's Make It or Break It

Since at least the 2000s, new broadcast television series are often ordered (funded) for just the first 10 to 13 episodes, to gauge audience interest. If a series is popular, the network places a "back nine order" and the season is completed to the regular 20 to 26 episodes. An established series which is already popular, however, will typically receive an immediate full-season order at the outset of the season. A midseason replacement is a less-expensive short-run show of generally 10 to 13 episodes designed to take the place of an original series that failed to garner an audience and has not been picked up. A "series finale" is the last show of the series before the show is no longer produced. (In the UK, it means the end of a season, what is known in the United States as a "season finale").

A standard television season in the United States runs predominantly across the fall and winter, from late September to May. During the summer months of June through roughly mid-September, network schedules typically feature reruns of their flagship programs, first-run series with lower ratings expectations, and other specials. First-run scripted series are typically shorter and of a lower profile than those aired during the main season and can also include limited series events. Reality and game shows have also been a fixture of the schedule.

In Canada, the commercial networks air most US programming in tandem with the US television season, but their original Canadian shows follow a model closer to British than American television production. Due to the smaller production budgets available in Canada, a Canadian show's season normally runs to a maximum of 13 episodes rather than 20 or more, although an exceptionally popular series such as Corner Gas or Murdoch Mysteries might receive 20-episode orders in later seasons. Canadian shows do not normally receive "back nine" extensions within the same season, however; even a popular series simply ends for the year when the original production order has finished airing, and an expanded order of more than 13 episodes is applied to the next season's renewal order rather than an extension of the current season. Only the public CBC Television normally schedules Canadian-produced programming throughout the year; the commercial networks typically now avoid scheduling Canadian productions to air in the fall, as such shows commonly get lost amid the publicity onslaught of the US fall season. Instead, Canadian-produced shows on the commercial networks typically air either in the winter as mid-season replacements for cancelled US shows or in the summer (which may also improve their chances of being picked up by a US network for a summer run).

Miniseries, limited series, and event series

While network orders for 13- or 22-episode seasons are still pervasive in the television industry, several shows have deviated from this traditional trend. Written to be closed-ended and of shorter length than other shows, they are marketed with a variety of terms.
  • Miniseries: a very short, closed-ended series, typically six or more hours in two or more parts (nights), similar to an extended television movie. Many early miniseries were adaptations of popular novels of the day, such as The National Dream (1974), Roots (1977), and North and South (1985). In recent years, as described by several television executives interviewed by The Hollywood Reporter, the term miniseries has grown to have negative connotations within the industry, having become associated with melodrama-heavy works that were commonly produced under the format, while limited series or event series receive higher respect.

India

In India, the shows are particularly referred to as serials, wherein the production is complex as well. The shows usually amount to at least 200 episodes, of 20 to 25 minutes each. On special episodes, referred to as Maha-Episodes, the duration last up to about 45 to 50 minutes. The show airs till the TRP (television rating point) is a little less than decent. The rating points depend on various criteria. Usually, shows which fail to attract TRP for a long time are shut down.

UK, Ireland and Australia usage

In the United Kingdom and other countries, these sets of episodes are referred to as a "series". In Australia, the broadcasting may be different from North American usage. The terms series and season are both used and are the same. For example, Battlestar Galactica has an original series as well as a remake, both are considered a different series each with their own number of individual seasons. 

Australian television does not follow "seasons" in the way that US television does; for example, there is no "fall season" or "fall schedule". For many years, popular night-time dramas in Australia would run for much of the year, and would only go into recess during the summer period (December to February, as Australia is in the Southern Hemisphere), when ratings are not taken. Therefore, popular dramas would usually run from February through November each year. This schedule was used in the 1970s for popular dramas including Number 96. Many drama series, such as McLeod's Daughters, have received between 22 and 32 episodes per season. Typically, soap operas, which have always run in season format in Australia, such as Home and Away, would usually begin a new season in late January, while the season finale would air in late November, as the show is off air for two months, or sometimes longer, depending on the schedule. In recent years, a new season would begin in early February, and the season finale would broadcast in early December. Since Home and Away's inception, it normally receives 230 episodes per season. Some seasons have seen between 205 and 235 episodes commissioned. During the Olympics, Home and Away would often go on hiatus, which was referred to as an "Olympic cliffhanger". Therefore, the number of episodes would decrease. Australian situation comedy series' seasons are approximately 13 episodes long and premiere any time between February and November. 

British shows have tended toward shorter series in recent years. For example, the first series of long-running science fiction show Doctor Who in 1963 featured forty-two 25‑minute episodes, this dropped to twenty-five by 1970 to accommodate changes in production and continued to 1984. For 1985 fewer but longer episodes were shown, but even after a return to shorter episodes in 1986, lack of support within the BBC meant fewer episodes were commissioned leading to only fourteen 25‑minute episodes up to those in 1989 after which it was cancelled. The revival of Doctor Who from 2005 has comprised thirteen 45‑minute installments. There are some series in the UK that have a larger number of episodes, for example Waterloo Road started with 8 to 12 episodes, but from series three onward it increased to twenty episodes and series seven will contain 30 episodes. Recently, American non-cable networks have also begun to experiment with shorter series for some programs, particularly reality shows, such as Survivor. They often air two series per year, resulting in roughly the same number of episodes per year as a drama.

This is a reduction from the 1950s, in which many American shows (e.g. Gunsmoke) had between 29 and 39 episodes per season. Actual storytelling time within a commercial television hour has also gradually reduced over the years, from 50 minutes out of every 60 to the current 44 (and even less on some networks), beginning in the early 21st century.

The usage of "season" and "series" differ for DVD and Blu-ray releases in both Australia and the UK. In Australia, many locally produced shows are termed differently on home video releases. For example, a set of the television drama series Packed to the Rafters or Wentworth is referred to as "season" ("The Complete First Season", etc.), whereas drama series such as Tangle are known as a "series" ("Series 1", etc.). British-produced shows such as Mrs. Brown's Boys are referred to as "season" in Australia for the DVD and Blu-ray releases.

In the UK and Ireland, most programmes are referred to as 'series' while 'season' is starting to be used for some American and international releases.

Running time

In the United States, dramas produced for hour-long time slots typically are 39 to 42 minutes in length (excluding advertisements), while sitcoms produced for 30-minute time slots typically are 18 to 21 minutes long. There are exceptions: subscription-based TV channels, such as HBO, Starz, Cinemax, and Showtime, have episodes that are 45 to 48 minutes long, similar to Britain. 

In Britain dramas typically run from 46 to 48 minutes on commercial channels, and 57 to 59 minutes on the BBC. Half-hour programs are around 22 minutes on commercial channels and around 28 minutes on the BBC. The longer duration on the BBC is due to the lack of advertising breaks.

In France most television shows (whether dramas, game shows or documentaries) have a duration of 52 minutes. This is the same on nearly all French networks (TF1, France 2, France 5, M6, Canal+, etc.).

Tuesday, August 18, 2020

2020 United States Postal Service crisis

United States Postmaster General Louis DeJoy, whose operational changes have precipitated the crisis.
 
The 2020 United States Postal Service crisis is a series of events that have caused backlogs and delays in the delivery of mail by the United States Postal Service (USPS). The crisis stems primarily from changes implemented by Postmaster General Louis DeJoy shortly after taking office in June 2020. The delays have had substantial legal, political, economic, and health repercussions. There is controversy and speculation about whether the delays are unintended consequences of restructuring operations, or if they were intentionally created for political and/or financial gain.

On August 18, 2020, under heavy political and legal pressure, DeJoy announced that he would be "suspending" the policy changes until after the November 2020 election. He has also agreed to testify to the Senate on August 21, and to the House of Representatives on August 24, concerning the changes and their effects.

Background

The USPS has had a history of budget deficits dating back to a 2006 law requiring it to prepay retiree health benefits 75 years in advance, a provision to which no other government agency or private corporation is subject. The agency's struggles were compounded by the financial crisis of 2007–2008 and subsequent recession, which caused overall mail volume to fall by one-third, and again by the COVID-19 pandemic and its economic effects.

Changes

Businessman and Trump campaign megadonor Louis DeJoy was sworn in as postmaster general on June 15, 2020; he is the first person since 1992 to assume the position without any prior experience in the United States Postal Service.

Upon taking office DeJoy immediately began taking measures to reduce costs, such as banning the use of overtime and extra trips to deliver mail. After criticism, DeJoy admitted that these measures were causing delays in mail delivery, but said they would eventually improve service.

An undetermined number of high-speed mail sorting machines were dismantled and removed from postal facilities without explanation, raising concerns that mailed ballots for the November 3 election might not reach election offices on time.

Mail collection boxes were removed from the streets in many cities. However, the Postal Service has been removing mail collection boxes as a cost-cutting measure for years - between 1985 and 2011, the number of mail collection boxes was reduced by 60% - so it remains unclear if the removals are connected to DeJoy's changes. After photos of boxes being removed were spread on social media, a Postal Service spokesman said they were being moved to higher-traffic areas but that the removals would stop until after the election.

On August 18 - after days of heavy criticism, and the day after lawsuits against the Postal Service and DeJoy personally were filed in federal court by several individuals - DeJoy announced that he would roll back all the changes until after the November election. He said he would reinstate overtime hours, roll back service reductions, and halt the removal of mail-sorting machines and collection boxes.

Legal issues

Federal law prohibits any employee of the Postal Service from delaying mail. The Postal Service inspector general has opened an investigation into the changes made by DeJoy, including any possible conflicts of interest stemming from his $30 million ownership stake in XPO Logistics, which processes mail for the USPS.

Several state attorneys general are also beginning investigations to determine if DeJoy has violated state election laws and are coordinating their efforts. As of August 18, 2020, attorneys general from at least twenty states planned to file federal lawsuits against the USPS and DeJoy. One imminent lawsuit is being led by Washington state, joined by Colorado, Connecticut, Illinois, Maryland, Massachusetts, Michigan, Minnesota, New Mexico, Oregon, Rhode Island, Vermont, Virginia, and Wisconsin; a second is being led by Pennsylvania, joined by California, Delaware, Maine, Massachusetts, and North Carolina. All of the participating attorneys general are Democrats.

U.S. Representative Bill Pascrell (D-New Jersey) requested the New Jersey attorney general to empanel a grand jury to investigate whether any state election laws have been violated; the AG declined comment. Arizona Secretary of State Katie Hobbs said, "In Arizona, it's against the law to 'delay the delivery of a ballot.' I've asked Attorney General Brnovich to investigate recent changes at USPS, and whether or not the Trump administration has committed a crime."

A number of individuals, including candidates for public office, have filed lawsuits in federal court against the Postal Service, DeJoy and Trump in response to the crisis, and many more are expected.

Political issues

Voting by mail has become an increasingly common practice in the United States, with the share of voters nationwide mailing their ballots growing from about 8 percent in 1996 to about 21 percent in 2016. The coronavirus pandemic of 2020 has been predicted to cause a large increase in mail voting because of the possible danger of congregating at polling places. For the 2020 election, a state-by-state analysis concluded that 76 percent of Americans are eligible to vote by mail in 2020, a record number. The analysis predicted that 80 million ballots could be cast by mail in 2020, more than double the number in 2016. Because of the operational changes causing delays in mail delivery, the Postal Service sent a letter to 46 U.S. states in July 2020, warning each state that the service might not be able to meet that state's deadlines for requesting and casting absentee ballots.

Donald Trump's involvement

President Donald Trump

Starting in spring 2020 President Donald Trump began to speak out against voting by mail, claiming without evidence that it is subject to massive fraud, and threatening to take steps to prevent states from sending absentee ballots to voters. Despite his false claims of fraud, Trump himself voted by mail in recent elections, as did First Lady Melania Trump and many senior administration officials. On August 13, 2020, in an interview with Fox Business Network's Maria Bartiromo, Trump said he was blocking emergency funding for the USPS because of his opposition to mail-in voting. Trump later defended the changes being made by DeJoy, saying that DeJoy wanted to "make the Post Office great again", a reference to Trump's own political slogan, "Make America Great Again". Former president Barack Obama accused Trump of deliberately "kneecapping" the Postal Service in order to discourage people from voting.

Contrary to Trump's stated belief that vote by mail harms Republicans, there is no evidence that it benefits one party or the other. However, nonpartisan experts have warned that delays in the delivery of mail-in ballots could be used by Trump to "steal the election" in the event that more Democrats than Republicans choose to vote by mail in the November 2020 elections. Public polling has indicated that more Democrats plan to vote by mail in the elections than Republicans, possibly due to Trump's false claims of vote by mail being riddled with fraud. In addition, there is a recurring phenomenon in U.S. elections called the blue shift, whereby in-person votes tallied on Election Night favor Republicans, then later-tallied ballots (including mailed ballots) shift the final result toward the Democrats. Longtime Republican elections lawyer and former Federal Election Commission chairman Trevor Potter stated that under such a scenario, Trump could build up a lead among ballots cast on Election Day, claim victory, and then say, "stop counting ballots because all those absentee ballots are illegitimate."

Trump met with DeJoy at the White House on August 3, 2020 in what was described by White House spokesman Judd Deere as a "congratulatory meeting". Trump later denied instructing DeJoy to slow mail delivery, saying he "wouldn't do that."

Economic issues

Some companies have complained that the delays are hurting their business, since their reputation is dependent on being able to deliver their wares reliably and promptly. A Wisconsin businessman said that with the recent changes, some shipments that might once have been no more than a day late now go missing for weeks, and Priority Mail and Express Mail can now take a week or more. The problems are especially severe for small businesses.

Individuals are also reporting serious economic problems due to delayed or missing mail: not receiving checks or important papers that they are expecting, or having their bill payments arrive at the company late so that they get charged a penalty. In some cities people report getting no mail at all for two or three weeks, and standing in line at the post office to see if it is there.

Health issues

Most prescribed medications from the Veterans Administration are sent by mail. Those medications are supposed to arrive within three to five days of being mailed. Since the operational changes imposed by DeJoy, veterans complain that such prescription deliveries have been delayed, often by weeks. Other health essentials such as oxygen tubes are also reportedly being delayed for weeks. A letter to DeJoy from 31 U.S. senators asked him to reassess the effect of his changes on veterans.

Protests

The crisis has precipitated protests against the changes made by DeJoy, with protesters calling for the postmaster general's resignation. One protest took place on August 15 outside of DeJoy's home in Washington, D.C.; a second took place on August 16 at his home in Greensboro, North Carolina.

Congressional response

On August 16, 2020, Speaker of the House Nancy Pelosi (D-California) ended a recess of the House of Representatives that had been scheduled to last until the week of September 14, calling lawmakers back to Washington to address the crisis. She proposed an early vote on a bill to roll back the changes introduced by DeJoy, which Democrats have described as "a grave threat to the integrity of the election." Pelosi said that "Lives, livelihoods and the life of our American democracy are under threat from the president."

Senate Minority Leader Chuck Schumer (D-New York) demanded that Majority Leader Mitch McConnell (R-Kentucky) bring the Senate back into session also, to consider ways to "undo the extensive damage Mr. DeJoy has done at the Postal Service," but there was no indication McConnell would do so. Some Republican senators have also called for reversing the changes, pointing out the importance of the Postal Service to rural residents; they include both senators from Montana and Senator Susan Collins of Maine.

On August 17, 2020, DeJoy agreed to testify before the House Committee on Oversight and Reform on August 24, and the next day he agreed to testify before the Senate Committee on Homeland Security and Government Affairs on August 21. He will be joined at the House hearing by USPS Board of Governors Chairman Robert M. Duncan.

Inequality (mathematics)

From Wikipedia, the free encyclopedia https://en.wikipedia.org/wiki/Inequality...