13 April (releases)


 * 1968 - Episode five of Fury from the Deep was first broadcast on BBC1.
 * 1968 - Part three of TV Comic story The Cyber Empire was first published.
 * 1974 - Episode four of The Monster of Peladon was first broadcast on BBC1.
 * 1974 - Part six of TV Comic story Is Anyone There? was first published.
 * 1987 - Pyramids of Mars was released on VHS.
 * 2006 - The Stone Rose, The Feast of the Drowned and The Resurrection Casket were first published by BBC Books.
 * 2013 - Cold War was first broadcast on BBC One.