BBC Radio 4 - History

History

See also: BBC Home Service

The BBC Home Service was the predecessor of Radio 4 and broadcast between 1939 and 1967. It had regional variations and was broadcast on medium wave with a network of VHF FM transmitters being added from 1955 onwards. Radio 4 replaced the Home Service on 30 September 1967, when the BBC renamed many of its domestic radio stations, in response to the challenge of offshore radio. It moved to long wave in 1978, taking over the 200 kHz frequency previously held by Radio 2, and later moved to 198 kHz as a result of international agreements aimed at avoiding interference.

For a time during the 1970s Radio 4 still carried some regional variations for parts of England not served by BBC Local Radio stations. These included Roundabout East Anglia, a VHF opt-out of the Today programme broadcast from BBC East's studios in Norwich each weekday morning from 6.45 am to 8.45 am. Roundabout East Anglia came to an end in 1980, when local radio services were introduced to East Anglia with the launch of BBC Radio Norfolk.

Until 1990 Radio 4's FM frequencies broadcast Open University, schools programming and the "Study on 4" adult education slot at various times on VHF/FM because until the 1990s, Radio 4 was not available on FM in much of Scotland, Wales and Northern Ireland. The launch of Radio 5 in September 1990 saw the removal of all three strands to the new station resulting, for the first time, in the full Radio 4 schedule being on FM. However, between 17 January 1991 and 2 March 1991, the FM broadcasts were replaced by a continuous news service devoted to the Gulf War, nicknamed "Scud FM", again with the main Radio 4 service being exclusively on long wave. In September 1991 bosses decided that the main Radio 4 service would be on FM as FM coverage had by now been extended to cover almost all of the UK. At this point, opt-outs were transferred to long wave, which are currently Test Match Special, extra shipping forecasts, The Daily Service and Yesterday in Parliament. Long wave also very occasionally opts out at other times, such as to broadcast special services, the most recent being when the Pope visited Britain in 2010.

Radio 4 is part of the Royal Navy's system of Last Resort Letters. In the event of a suspected catastrophic attack on the United Kingdom, submarine commanders, in addition to carrying out other checks, would check for a broadcast signal from Radio 4 to verify the annihilation of civilisation in the United Kingdom.

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