The digital switchover also spells the end for BBC Ceefax, the world's first teletext service, after nearly four decades.

BBC: Northern Ireland completes UK digital TV switchover

The founding editor of the BBC's Ceefax service - the world's first teletext service - has died at the age of 85.

BBC: Ceefax founding editor Colin McIntyre dies at 85

The technology for the world's first teletext service was developed by BBC engineers who were trying to find ways of providing subtitles on TV programmes for the deaf, rather than produce a news service.

BBC: Ceefax founding editor Colin McIntyre dies at 85