4/8 Nick Robinson on the row over Yesterday's Men, a BBC film about Labour in 1971.
BBC Radio 4
3/8 The bitter clash between the broadcasters and Sir Eden's government during the Suez crisis
2/8 The maverick Churchill and other critical voices were kept off the BBC in the 1930s.
1/8 Nick Robinson on radio's early days and the impact of the 1926 General Strike.