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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 31, 2006, but was delayed several times due to multiple government acts being enforced on broadcasting companies.
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.
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
The digital dividend refers to the radio spectrum which is released in the process of digital television transition.When television broadcasters switch from analog TV to digital-only platforms, part of the electromagnetic spectrum that has been used for broadcasting will be freed-up because digital television needs less spectrum than analog television, due to lossy compression.
The Digital Television Transition and Public Safety Act of 2005 is a United States Congress legislation enacted on October 20, 2005. This act deals with the cessation of the broadcasting of analog television and the subsequent implementation of digital television. This transition took place on June 12, 2009, which had been scheduled for ...
UK digital switchover dates. The digital switchover was the process by which analogue terrestrial television in the United Kingdom was replaced with digital terrestrial television. It is sometimes referred to as the "analogue switch off". In the United Kingdom, the terrestrial switchover started on 17 October 2007 and was completed on 24 ...
Despite the analog shutoff deadline being extended to June 12, 2009 as part of the DTV Delay Act, stations that signed off before the deadline were still permitted to participate in the SAFER Act. This was allowed for such broadcasts, in both English and Spanish, until July 12, 2009, while normal programming ceased the previous month. [4]
Digital terrestrial television is broadcast using the DVB-T international standard for standard-definition content and DVB-T2 for high definition content. The digital switchover process involved discontinuing analogue terrestrial TV broadcasts, which in some areas allowed for greater signal strength and/or better coverage of digital multiplexes.