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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).
High-definition television (HDTV) in the United States was introduced in 1998 and has since become increasingly popular and dominant in the television market. Hundreds of HD channels are available in millions of homes and businesses both terrestrially and via subscription services such as satellite , cable and IPTV .
The Consumer Electronics Associationannounced on October 17, 2012, that "Ultra High Definition", or "Ultra HD", would be used for displays that have an aspect ratioof 16:9 or wider and at least one digital input capable of carrying and presenting native video at a minimum resolution of 3840 × 2160.
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 ...
What we're watching: It's the first "Saturday Night Live" in high-def, so you know we're catching that on NBC at 11:30 p.m. in glorious 1080i. SNL had a 30-year run in SD, so let's see if they go ...
Discovery Communications / Sony / IMAX. August 12, 2014 [ 3] Launched on February 13, 2011. 3D television channel. Alpha Repertory Television Service. Hearst Corporation / ABC. February 1, 1984. Launched on April 12, 1981. Merged with The Entertainment Channel to form A&E .
Television. 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.
Digital television ( DTV) is the transmission of television signals using digital encoding, in contrast to the earlier analog television technology which used analog signals. At the time of its development it was considered an innovative advancement and represented the first significant evolution in television technology since color television ...