23 February (releases)


 * 1974 - Part one of Death to the Daleks was first broadcast on BBC1.
 * 1974 - Part four of the TV Comic story The Disintegrator was first published.
 * 1982 - Part four of The Visitation was first broadcast on BBC1.
 * 1983 - Part four of Terminus was first broadcast on BBC1.
 * 1984 - Part one of Planet of Fire was first broadcast on BBC1.
 * 1985 - Both part two of The Two Doctors and the sketch A Fix with Sontarans were broadcast on BBC1.
 * 2007 - The Doctor Who: Battles in Time trading card set Annihilator was first released in the magazine Doctor Who: Battles in Time.
 * 2010 - The audio story The Last Voyage was first released by BBC Audio, as were the audio adaptations of the novelisations Doctor Who and the Dalek Invasion of Earth, Doctor Who and the Ice Warriors and Doctor Who and the Planet of the Spiders. An audio adaption of BBC Books novel Beautiful Chaos was also released by AudioGO, read by Bernard Cribbins.
 * 2011 - DWDVDF 56 was first published by GE Fabbri Ltd.
 * 2012 - The Doctor Who Adventures comic story The Fairest of Them All was first published.
 * 2013 - The Puffin eshort The Nameless City was first released by Puffin Books.
 * 2017 - Casualties of War was released by Big Finish Productions.