| 1970 4 April BBC radio networks reorganised. Third Programme (evening), Music Programme (daytime) and Study Session banners dropped from Radio 3; Sports Service replaced by Radio 2's Sport on 2 6 April First editions of PM and The World Tonight on Radio 4 4 September Launch of BBC Radio Bristol. Further BBC Local Radio stations start: Manchester (10 Sep), London (6 Oct), Oxford (29 Oct), Birmingham (9 Nov), Medway (18 Dec), Solent and Teeside (31 Dec) 14 September Nine O'Clock News launched on BBC1, replacing the 8.50pm bulletin   
1971  2 January BBC Radio Newcastle opened. Further BBC Local Radio stations start: Blackburn
(26 Jan), Humberside (25 Feb), Derby (29 Apr)
3 January First Open University programme shown. The full service on BBC radio and
television begins the following week 1 February Radio licence abolished 10 November The BBC's Pebble Mill studios in Birmingham opened by Princess Anne
1972 BBC1's early evening National News moved from 5.50 to 5.45 in 1972; Nine O'Clock News was also extended by five minutes   19 January Restriction on television broadcasting hours
lifted
4 April First edition of John Craven's Newsround September Nationwide now on air five days a week.
24 Hours replaced by Midweek on BBC1 2 September BBC Radio frequencies reorganised. Fourteen BBC Local Radio stations now available on medium wave in
addition to VHF. Radio 4 regional programmes end on medium wave, but regional services retained for East Anglia and the South West on VHF 23 October The BBC announces the development of Ceefax - the world's first teletext service 13 November New look for Nine O'Clock News; two presenter format introduced
1973 BBC2's Newsroom ended in 1973; replaced by late night News Extra 12 March Ceefax test transmissions begin 23 July First edition of Newsbeat on Radio 1 2 September September Pebble Mill at One launched 8 October LBC launched as the UK's first commercial radio station. The second station, Capital Radio, begins on 16 October
1974 1 January BBC Radio Scotland launched Autumn Newsday introduced on BBC2 each evening at 7.30pm September BBC schools diamond introduced 23 September Ceefax officially launched by the BBC December New ident introduced on BBC2; possibly new ident on BBC1 introduced at the same time?
1975 January Serious financial cutbacks affect BBC television and radio; broadcasting hours for all four radio networks reduced, particularly Radios 1 and 2; on television afternoon programmes are cut back and BBC2 transmitters close down between 11.30am-4.00pm 1 January BBC Radio Ulster launched   16 August New BBC weather symbols introduced
Autumn BBC1's Midweek replaced by Tonight each weeknight around 11.00pm 1 October First edition of BBC2's Arena
1976   8 March BBC News receives a new look; the 5 minute lunchtime bulletin is extended to 15 minutes, running from 12.45-1.00, and is now called Midday News; the 5.45-6.00 National News is now called Evening News; Nine O'Clock News reverts to one presenter format
September BBC1's Evening News now runs from
5.40-5.55; Nationwide now starts at 5.55. ITV's early
evening news moves from 5.50 to 5.45
1977 Colour television licences exceeded black-and-white for the first time in 1977.
1978  8 February First edition of BBC1's Grange Hill
3 April Regular radio broadcasts from Parliament started Summer BBC2's Newsday ends Autumn Evening programmes on BBC2 extended back from a start time of 7.00pm to around 5.30 13 November Launch of BBC Radio Wales 23 November Major AM frequency changes for BBC national radio; BBC Radio Scotland begins broadcasting
1979 27 January Radio 2 begins 24 hour broadcasting Summer BBC1's Tonight ends 10 August All ITV stations (with the exception of Channel Television) are off air due to industrial action 2 September First Ceefax subtitled programme - the programme was Quietly in Sweden and was the world's first teletext subtitled programme 25 September First edition of Question Time 24 October ITV services resumed | 
