13 March (releases)


 * 1965 - "Invasion" was first broadcast on BBC1.
 * 1965 - Part two of the TV Comic comic story The Hijackers of Thrax was first published.
 * 1971 - Episode one of The Claws of Axos was first broadcast on BBC1.
 * 1971 - Part four of Gemini Plan was first published in Countdown.
 * 1975 - The novelisation of Robot was first published by Target Books.
 * 1976 - Part seven of the TV Comic story Virus was first published.
 * 1986 - The novelisation of The Twin Dilemma was first published by Target Books.
 * 2008 - Part two of the Doctor Who Adventures comic story Reign of the Stone Monkey was first published.
 * 2008 - Something New aired on BBC Three.
 * 2009 - From Raxacoricofallapatorius With Love was first broadcast as part of Comic Relief's Red Nose Day.
 * 2012 - The video game Worlds in Time was first officially released by BBC Worldwide, although a preview had been available to the public since 20 December 2011.
 * 2012 - The Face of Evil was released on Region 1 DVD.
 * 2015 - Requiem for the Rocket Men was first released by Big Finish.