20 April

Events
to be added

Behind the scenes

 * 1939 - Ray Brooks (David in the movie Daleks' Invasion Earth 2150 A.D.) was born.
 * 1955 - Andrew Forbes, who played Omril in TV: Full Circle, was born.
 * 1968 - Episode 6 of TV: Fury from the Deep was first broadcast.
 * 1974 - Episode 5 of TV: The Monster of Peladon was first broadcast.