21 March (releases)


 * 1964 - "Rider from Shang-Tu" was first broadcast on BBC1.
 * 1970 - Episode one of The Ambassadors of Death was first broadcast on BBC1.
 * 1970 - Part four of TV Comic story The Multi-Mobile was first published.
 * 1981 - Part four Logopolis was first broadcast on BBC1, completing the eighteenth season of Doctor Who.
 * 1996 - Sleepy and The English Way of Death were first published by Virgin Books.
 * 1996 - Ace! The Inside Story of the End of an Era was first published by Doctor Who Books.
 * 2007 - Beyond the Sea was first published in DWBIT 14.
 * 2008 - Fragments was first broadcast on BBC Three.
 * 2011 - Doctor Who: Original Television Soundtrack: A Christmas Carol was first released on CD by Silva Screen Records.