it the BBC All Network Radio Service. The strike is settled shortly before 10pm on Friday 22 December 1978, with the unions and BBC management reaching an agreement at the British government's industrial disputes arbitration service ACAS. 1979 1 April – The first edition of Feedback is broadcast. 30 September – First broadcast of The Food Programme. 1980s 1980 Summer – Due to the continued expansion of BBC Local Radio, regional opt-out programming ends, apart from in the south west as this is now the only part of England still without any BBC local station. 1981 No events. 1982 1 October – After 32 years on air, Listen with Mother is broadcast for the final time. It is replaced three days later by a shorter five minute lunchtime programme called Listening Corner which is transmitted on FM only whilst long wave listeners receive the lunchtime shipping forecast. 31 December – The last regional opt-out programming ends when the final edition of Morning Sou'West is broadcast ahead of the forthcoming launch of BBC Radio Devon and BBC Radio Cornwall. 1983 1 February – In Business is broadcast for the first time. 1984 5 April – Radio 4 begins what is described in Radio Times as "a new three-hour sequence – a six-month broadcast experiment in which you are invited to participate." The programme is called Rollercoaster and is presented by Richard Baker. The "Grand Finale of Radio 4's rollicking rolling experiment" takes place on 27 September and was not repeated. 27 July – David Jacobs chairs Any Questions? for the final time. 14 September – John Timpson chairs Any Questions? for the first time. 29 September – Radio 4 starts broadcasting 30 minutes earlier at the weekend when it launches a 20-minute Prelude, described as “a musical start to your weekend listening”. Consequently, the station is now on air every day from just before 6am until 12:30am. The Radio 4 UK branding is dropped and the station is now officially simply known as Radio 4. 1985 28 June – The final weeknight Study on 4 broadcast takes place. 29 June – Study on 4 is renamed Options and from this date all of BBC Radio's adult educational programming is now broadcast on weekend afternoons. The programmes continue to be broadcast only on VHF/FM. This means that Radio 4's output on weeknights between 11pm and 11:30pm – ie all of The World