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Currently, HD programming is carried by all major television networks in nearly all DMAs, including ABC, CBS, NBC, FOX, PBS, The CW, MyNetworkTV, Telemundo, Univision, and UniMás; and on many independent stations. All but a select few of cable networks offer an HD broadcast to cable and satellite companies.
High-definition television. High-definition television (HDTV) describes a television or video system which provides a substantially higher image resolution than the previous generation of technologies. The term has been used since at least 1933; [1] in more recent times, it refers to the generation following standard-definition television (SDTV).
For the resolution commonly referred to as "Ultra HD", see 4K resolution. Diagram of the CIE 1931 color space that shows the Rec. 2020 (UHDTV) color space in the outer triangle and Rec. 709 (HDTV) color space in the inner triangle. Both Rec. 2020 and Rec. 709 use Illuminant D65 for the white point. Ultra-high-definition television (also known ...
12 June 2009 - final hours of analog broadcast on WWL-TV gave information about websites and telephone numbers for more information about transition. 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 ...
Digital television sets (equipped with ATSC tuners) are often capable of viewing a baseline set of unencrypted digital programming, known as basic cable or low-tier channels, which typically include local network television affiliates. According to FCC regulations, television providers must provide "separable security" for accessing encrypted ...
NBC. CBS. ABC. Fox. The CW. PBS. The five major commercial broadcast television networks, along with PBS. In the United States, for most of the history of broadcasting, there were only three or four major commercial national terrestrial networks. From 1946 to 1956, these were ABC, CBS, NBC and DuMont.
UHF television broadcasting is the use of ultra high frequency (UHF) radio for over-the-air transmission of television signals. UHF frequencies are used for both analog and digital television broadcasts. UHF channels are typically given higher channel numbers, like the US arrangement with VHF channels (initially) 1 to 13, and UHF channels ...
Television (TV) is a telecommunication medium for transmitting moving images and sound. Additionally, the term can refer to a physical television set rather than the medium of transmission. Television is a mass medium for advertising, entertainment, news, and sports.