22:45The Pickerskill DetentionsEpisode 2: A Textbook DetentionBBC Radio 4 Extra Duration: 15 minutes Tue 1st Feb 2011, 22:45 on BBC Radio 7Retired English master Dr Henry Pickerskill recalls his most memorable detentions. Stars Ian Richardson. From July 2005.GenresComedySeriesThe Pickerskill Detentions Source: BBC Online