4 March (releases)


 * 1967 - Episode four of The Moonbase was first broadcast on BBC1.
 * 1972 - Episode two of The Sea Devils was first broadcast on BBC1.
 * 1972 - Part one of The Planet of the Daleks was first published in Countdown to TV Action.
 * 1978 - Episode five of The Invasion of Time was first broadcast on BBC1.
 * 2003 - Vengeance on Varos and The Aztecs were first released on Region 1 DVD.
 * 2008 - Planet of Evil was released on Region 1 DVD.
 * 2009 - Issue sixty-five of Doctor Who: Battles in Time, including comic story The Day the Earth Was Sold, was first released by GE Fabbri Ltd.
 * 2010 - Quick Reads novel Code of the Krillitanes was first published by BBC Books.
 * 2010 - New Series Adventures audio story Dead Air was first released by BBC Audio.
 * 2010 - Doctor Who Adventures comic story Mudshock was first released in issue one hundred and fifty-six.