25 Years of Rock was a 25-part radio series broadcast on BBC Radio 1 from 22 June to 7 December 1980. Each hour-long episode featured music and news stories from a year, starting with 1955 and finishing with 1979. The series encapsulated the period from the birth of rock and roll in 1955 to the post-punk era of the late seventies, and charted social and political events with a rock soundtrack. The series was repeated in 1981 between 4 April (1955) and 19 September (1979). 
An extended version, 30 Years of Rock, was on Radio 1 in 1985. This consisted of the original series plus five new episodes covering 1980 to 1984. “30 Years Of Rock” was broadcast on BBC Radio 1 from 1-2pm each week, between 20 April (1955) and 16 November (1984). A one-week gap was made due to the live broadcast of “Live Aid” on 13 July. The series was most recently repeated on BBC Radio 6 Music from 28th November 2015 and is expected to finish on 27th December 2015.