4/8. Cockney or Mockney. With their gentle satire on class in postwar Britain, the Ealing Comedies secured an abiding place in the national consciousness. Michael Rosen asks how accurate was the speech of the union officials in The Man with the White Suit orthe working-class Londoners in Passport to Pimlico? And how the language of astronomy crops up in words like consider, disaster and influenza. Producer Isobel Eaton Repeated Sun8.30pm