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The five main ATSC formats of DTV currently [when?] broadcast in the U.S. are: . Standard definition—480i, to maintain compatibility with existing NTSC sets when a digital television broadcast is converted back to an analog one [citation needed] —either by a converter box or a cable/satellite operator's proprietary equipment
Lowell Thomas hosted the first-ever, regularly scheduled news broadcast on American television in March 1940; it was a simulcast of his nightly 6:45 PM NBC network radio newscast, with the television broadcast seen only in New York City over what was then experimental TV station W2XBS. [1] The television simulcast lasted for only a few months.
June 12, 2009 – final hours of analog broadcast on WWL-TV gave information about website and telephone number for more information about transition. The digital television transition in the United States was the switchover from analog to exclusively digital broadcasting of terrestrial television programming. It was originally set for December ...
Growth divided television broadcasting into several genres, such as fiction, news, sports, and reality television. Cable television provided more channels, especially for entertainment. By the late 20th century radio (sound) broadcasting had similarly divided, with stations specializing in a particular musical genre, or news or sports.
For most of the history of television in the United States, the Big Three dominated, controlling the vast majority of television broadcasting. [8] DuMont ceased regular programming in 1955; the NTA Film Network, unusual in that its programming, all pre-recorded, was distributed by mail instead of through communications wires, signed on in 1956 and lasted until 1961.
Approximate U.S. television broadcast dayparts for weekdays (Eastern Time Zone)In broadcast programming, dayparting is the practice of dividing the broadcast day into several parts, in which a different type of radio programming or television show appropriate for that time period is aired.
The digital television transition in the United States has put all signals, broadcast and cable, into digital form, rendering analog cable television service a rarity, found in an ever-dwindling number of markets. Analog television sets are accommodated, their tuners mostly obsolete and dependent entirely on the set-top box.
In the United States, television is available via broadcast (also known as "over-the-air" or OTA) – the earliest method of receiving television programming, which merely requires an antenna and an equipped internal or external tuner capable of picking up channels that transmit on the two principal broadcast bands, very high frequency (VHF) and ultra high frequency (UHF), to receive the ...