23 September

Behind the scenes

 * 1949 - Floella Benjamin, who played Professor Rivers in four episodes of The Sarah Jane Adventures, was born.
 * 1967 - DW: The Tomb of the Cybermen Episode 4 was first broadcast.
 * 1978 - DW: The Ribos Operation Part 4 was first broadcast.
 * 2006 - Patrick Tull (one of the voices of the Krotons in DW: The Krotons) died.