20 September

Behind the scenes

 * 1921 - Jack Kine (visual effects designer for TV: The Mind Robber) was born.
 * 1925 - Doctor Who producer John Wiles was born.
 * 1955 - David Haig was born.
 * 1975 - TV: Terror of the Zygons Part 4 was first broadcast.
 * 1980 - TV: The Leisure Hive Part 4 was first broadcast.
 * 1986 - TV: The Mysterious Planet Part 3 was first broadcast.
 * 1986 - Dennis Spooner, a writer and script editor for Doctor Who, died.
 * 1989 - TV: Battlefield Part 3 was first broadcast.
 * 1993 - Salvin Stewart (a Morok Guard and Messenger in TV: The Space Museum) died.
 * 2000 - Mary Ridge (director of TV: Terminus) died.
 * 2009 - Kenneth Seeger (a Cyberman in TV: The Tomb of the Cybermen) died.