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List of digital terrestrial television channels (UK)
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List of digital terrestrial television channels (UK) : ウィキペディア英語版
List of digital terrestrial television channels (UK)

This is a list of the current channels available on digital terrestrial television in the United Kingdom, those planned for the future, and those that have been removed.
All multiplexed H.222 transports for HDTV (1080i) channels use DVB-T2 256-QAM modulation. Local channels on the LTVmux use DVB-T QPSK modulation. All other transports for PAL (576i), radio and interactive channels use DVB-T 64-QAM modulation.
All HD television channels on the Freeview platform are encoded in H.264 and subject to a MPEG-LA controlled transmission patent licensing tax which is included in the Freeview broadcaster cost and varies on viewership figures. This tax is currently paid via one of three registered licensees, which are the BBC, ITV and BSkyB. The SD channels still use H.262 which doesn't incur any additional transmission costs.
The PSB1 transport (operating name BBC A) is used solely for BBC non-HDTV channels. The PSB2 transport (operating name D3&4) is used for other broadcasters' non-HDTV channels with spill over onto the less available COM4 (operating name SDN), COM5 (operating name ARQ A) and COM6 (operating name ARQ B) transports. The PSB3 transport (operating name BBC B) is used solely for HDTV channels with spill over onto the less available COM7 (operating name ARQ C) and COM8 (operating name ARQ D) transports.
LTVmux is series of localised transports at certain transmitter sites carrying local and nationwide channels. Its availability is much less than that of the commercial COM transports. In addition to this, the GImux transport (operating name G_MAN) is only available in Greater Manchester and the NImux transport (operating name RNI_1) is only available in parts of Northern Ireland.
Many free-to-air channels are promoted as part of the Freeview line-up. Subscription channels require a subscription to a pay TV package, with pay-per-view channels requiring a one-off payment to view an event.
==Channel sections==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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