Dad's Army

Many of the TV episodes were remade for BBC Radio 4 with the original cast, although other actors played Walker after James Beck's death (which took place soon after recording and before transmission of the first radio series). These radio versions were adapted from the original television scripts by Harold Snoad and Michael Knowles, and featured John Snagge as a newsreader, who set the scene for each episode. Different actors were used for some of the minor parts: for example Mollie Sugden...

Many of the TV episodes were remade for BBC Radio 4 with the original cast, although other actors played Walker after James Beck's death (which took place soon after recording and before transmission of the first radio series). These radio versions were adapted from the original television scripts by Harold Snoad and Michael Knowles, and featured John Snagge as a newsreader, who set the scene for each episode. Different actors were used for some of the minor parts: for example Mollie Sugden played the role of Mrs Fox, and Pearl Hackney played Mrs Pike. The first episode was based on the revised version of events seen in the opening of the film version, rather than on the TV pilot. (Wikipedia)