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The digital switchover is the name given to 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".
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In the United Kingdom, the terrestrial switchover started on 17 October 2007 and was completed on 24 October 2012. Each group of transmitters within each TV region had its analogue broadcasts switched off at a certain point between those dates. The process was co-ordinated by an independent body, Digital UK.
Switchover guide
Stage 1 – Analogue BBC Two and low power digital Multiplex 1 switched off. High power Multiplex 1 switched on.
Stage 2 – All remaining analogue channels and low power digital multiplexes switched off. Remaining high power digital multiplexes switched on.
Switchover dates
These are the dates at which switchover took place in each TV region, as published by Digital UK.
Channel Islands
The Channel Islands' transmitters carry three of the DTT multiplexes – BBCA, D3&4 and BBCB. BBCA carries the BBC SD channels as elsewhere, the D3&4 mux carries ITV3 (which is on the SDN mux elsewhere) as of February 2012 in place of ITV1 +1 (which is not available on the islands), and BBCB carries BBC HD, BBC One HD and Channel 4 HD (ITV1 HD is not available on the islands).
UTV
Northern Ireland completed the digital switchover on the same day as the Republic of Ireland, with Northern Ireland switching off analogue transmissions shortly after midnight, and the Republic of Ireland shortly after 10am. Viewers in some areas are able to receive an additional multiplex of channels carrying RTÉ One, RTÉ2 and TG4. These are broadcast in DVB-T2, and despite not being in high definition, require a Freeview HD receiver. Viewers in much of Northern Ireland can receive these and other Irish channels directly from Saorview transmitters based in the Republic. As these are broadcast in MPEG4, a Freeview HD receiver is generally required, although a very small number of standard Freeview receivers are compatible. Almost all viewers in Northern Ireland are able to receive at least some channels from the Republic by one or both of these means.