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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 ...
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 ...
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 ...
The digital television transition, also called the digital switchover ( DSO ), the analogue switch/sign-off ( ASO ), the digital migration, or the analogue shutdown, is the process in which older analogue television broadcasting technology is converted to and replaced by digital television. Conducted by individual nations on different schedules ...
Family watching TV, 1958. The concept of television is the work of many individuals in the late 19th and early 20th centuries. The first practical transmissions of moving images over a radio system used mechanical rotating perforated disks to scan a scene into a time-varying signal that could be reconstructed at a receiver back into an approximation of the original image.
Television is one of the major mass media outlets in the United States. In 2011, 96.7% of households owned television sets; [1] about 114,200,000 American households owned at least one television set each in August 2013. [2] Most households have more than one set. The percentage of households owning at least one television set peaked at 98.4% ...
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 .
Cable television first became available in the United States in 1948. [1] By 1989, 53 million U.S. households received cable television subscriptions, [2] with 60 percent of all U.S. households doing so in 1992. [3] Most cable viewers in the U.S. reside in the suburbs and tend to be middle class; [4] cable television is less common in low ...