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Cable television is a system of delivering television programming to consumers via radio frequency (RF) signals transmitted through coaxial cables, or in more recent systems, light pulses through fibre-optic cables. This contrasts with broadcast television, in which the television signal is transmitted over-the-air by radio waves and received by a television antenna attached to the television; or satellite television, in which the television signal is transmitted over-the-air by radio waves from a communications satellite orbiting the Earth, and received by a satellite dish antenna on the roof. FM radio programming, high-speed Internet, telephone services, and similar non-television services may also be provided through these cables. Analog television was standard in the 20th century, but since the 2000s, cable systems have been upgraded to digital cable operation.
A television broadcaster or television network is a telecommunications network for the distribution of television content, where a central operation provides programming to many television stations, pay television providers or, in the United States, multichannel video programming distributors. Until the mid-1980s, broadcast programming on television in most countries of the world was dominated by a small number of terrestrial networks. Many early television networks such as the BBC, CBS, CBC, NBC or ABC in the US and in Australia evolved from earlier radio networks.
The DuMont Television Network was one of America's pioneer commercial television networks, rivaling NBC and CBS for the distinction of being first overall in the United States. It was owned by Allen B. DuMont Laboratories, a television equipment and television set manufacturer, and began operation on April 13, 1940.
Broadcasting is the distribution of audio or video content to a dispersed audience via any electronic mass communications medium, but typically one using the electromagnetic spectrum, in a one-to-many model. Broadcasting began with AM radio, which came into popular use around 1920 with the spread of vacuum tube radio transmitters and receivers. Before this, most implementations of electronic communication were one-to-one, with the message intended for a single recipient. The term broadcasting evolved from its use as the agricultural method of sowing seeds in a field by casting them broadly about. It was later adopted for describing the widespread distribution of information by printed materials or by telegraph. Examples applying it to "one-to-many" radio transmissions of an individual station to multiple listeners appeared as early as 1898.
Iowa PBS, formerly Iowa Public Television (IPTV), is a network of Public Broadcasting Service (PBS) member stations in the U.S. state of Iowa. It is operated by the Iowa Public Broadcasting Board, an agency of the state education department which holds the licenses for all the PBS member stations in the state. Iowa PBS' headquarters are located at 6450 Corporate Drive in Johnston, Iowa, a suburb of Des Moines.
Public-access television is traditionally a form of non-commercial mass media where the general public can create content television programming which is narrowcast through cable television specialty channels. Public-access television was created in the United States between 1969 and 1971 by the Federal Communications Commission (FCC), under Chairman Dean Burch, based on pioneering work and advocacy of George Stoney, Red Burns, and Sidney Dean.
Television is one of the major mass media outlets in the United States. In 2011, 96.7% of households owned television sets; about 114,200,000 American households owned at least one television set each in August 2013. Most households have more than one set. The percentage of households owning at least one television set peaked at 98.4%, in the 1996–1997 season. In 1948, 1 percent of U.S. households owned at least one television; in 1955, 75 percent did. In 1992, 60 percent of all U.S. households had cable television subscriptions.
WNUV is a television station in Baltimore, Maryland, United States, affiliated with The CW. It is owned by Cunningham Broadcasting, which maintains a local marketing agreement (LMA) with Sinclair Broadcast Group, owner of Fox/MyNetworkTV affiliate WBFF, for the provision of programming and certain services. However, Sinclair effectively owns WNUV, as the majority of Cunningham's stock is owned by the family of deceased group founder Julian Smith. Sinclair also operates TBD affiliate WUTB under a separate shared services agreement with Deerfield Media. The stations share studios on 41st Street off the Jones Falls Expressway on Television Hill in the Woodberry neighborhood of north Baltimore; WBFF and WNUV are also broadcast from the same tower on the hill.
WACY-TV is an independent television station licensed to Appleton, Wisconsin, United States, serving the Green Bay area. It is owned by the E. W. Scripps Company alongside NBC affiliate WGBA-TV. The two stations share studios on North Road near Airport Drive/WIS 172 in the Green Bay suburb of Ashwaubenon; WACY-TV's transmitter is located in the Shirley section of Glenmore, Wisconsin.
Superstation is a term in North American broadcasting that has several meanings. Commonly, a "superstation" is a form of distant signal, a broadcast television signal—usually a commercially licensed station—that is retransmitted via communications satellite or microwave relay to multichannel television providers over a broad area beyond its primary terrestrial signal range.
An independent station is a broadcast station, usually a television station, not affiliated with a larger broadcast network. As such, it only broadcasts syndicated programs it has purchased; brokered programming, for which a third party pays the station for airtime; and local programs that it produces itself.
News broadcasting is the medium of broadcasting various news events and other information via television, radio, or the internet in the field of broadcast journalism. The content is usually either produced locally in a radio studio or television studio newsroom, or by a broadcast network. A news broadcast may include material such as sports coverage, weather forecasts, traffic reports, political commentary, expert opinions, editorial content, and other material that the broadcaster feels is relevant to their audience. An individual news program is typically reported in a series of individual stories that are presented by one or more anchors. A frequent inclusion is live or recorded interviews by field reporters.
WAZE-TV is a defunct television station licensed to Madisonville, Kentucky, United States. It served the Evansville, Indiana, television market from 1983 to 2013, and was most recently affiliated with The CW. The station's transmitter was located in Hanson, Kentucky. On March 24, 2011, the Federal Communications Commission (FCC) canceled WAZE's license for failure to construct its full-power digital facility.
WPCH-TV, branded on-air as Peachtree TV, is a television station in Atlanta, Georgia, United States, affiliated with The CW. It is owned by locally based Gray Television alongside CBS affiliate and company flagship WANF, and low-power, Class A Telemundo affiliate WKTB-CD. WPCH-TV and WANF share studios on 14th Street Northwest in Atlanta's Home Park neighborhood; WPCH-TV's transmitter is located in the Woodland Hills section of northeastern Atlanta.
Nebraska Public Media, formerly Nebraska Educational Telecommunications (NET), is a state network of public radio and television stations in the U.S. state of Nebraska. It is operated by the Nebraska Educational Telecommunications Commission (NETC). The television stations are all members of the Public Broadcasting Service (PBS), while the radio stations are members of National Public Radio (NPR).
Wyoming PBS is the PBS member network in the U.S. state of Wyoming. It currently consists of flagship KCWC-DT in Lander ; full-power satellites KWYP-DT in Laramie and KPTW in Casper; and over 35 low-power translator stations across the state.
Cable television first became available in the United States in 1948. By 1989, 53 million U.S. households received cable television subscriptions, with 60 percent of all U.S. households doing so in 1992. Most cable viewers in the U.S. reside in the suburbs and tend to be middle class; cable television is less common in low income, urban, and rural areas.
The Paramount Television Network, Inc. was a venture by American film corporation Paramount Pictures to organize a television network in the late 1940s. The company-built television stations KTLA in Los Angeles and WBKB in Chicago; it also invested $400,000 in the DuMont Television Network, which operated stations WABD in New York City, WTTG in Washington, D.C., and WDTV in Pittsburgh. Escalating disputes between Paramount and DuMont concerning breaches of contract, company control, and network competition erupted regularly between 1940 and 1956, culminating in the DuMont Network's dismantling. Television historian Timothy White called the clash between the two companies "one of the most unfortunate and dramatic episodes in the early history of the television industry."
The digital transition in the United States was the switchover from analog to exclusively digital broadcasting of terrestrial television programming. According to David Rehr, then president and CEO of the National Association of Broadcasters, this transition represented "the most significant advancement of television technology since color TV was introduced." For full-power TV stations, the transition went into effect on June 12, 2009, with stations ending regular programming on their analog signals no later than 11:59 p.m. local time that day.
The broadcast of educational children's programming by terrestrial television stations in the United States is mandated by the Federal Communications Commission (FCC), under regulations colloquially referred to as the Children's Television Act (CTA), the E/I rules, or the Kid Vid rules. Since 1997, all full-power and Class A low-power broadcast television stations have been required to broadcast at least three hours per-week of programs that are specifically designed to meet the educational and informative (E/I) needs of children aged 16 and younger. There are also regulations on advertising in broadcast and cable television programming targeting children 12 and younger, including limits on ad time, and prohibiting the airing of advertising for products related to the program currently airing.
References
- ↑ Lev, Peter (2006). The Fifties: Transforming the Screen, 1950-1959. University of California Press. pp. 130–131. ISBN 0-520-24966-6.
- ↑ Hilmes, Michele (1990). Hollywood and Broadcasting: from Radio to Cable. Urbana, IL: University of Illinois Press. pp. 122–123. ISBN 0-252-06846-7.