1 February (releases)


 * 1964 - "The Rescue" was first broadcast on BBC tv.
 * 1965 - Part three of the TV Comic story The Therovian Quest was first published.
 * 1969 - Episode two of The Seeds of Death was first broadcast on BBC1.
 * 1969 - Part one of the TV Comic story Martha the Mechanical Housemaid was first published.
 * 1975 - Part two of The Ark in Space was first broadcast on BBC1.
 * 1975 - Part four of the TV Comic story Death Flower was first published.
 * 1982 - Part one of Kinda was first broadcast on BBC1.
 * 1983 - Part one of Mawdryn Undead was first broadcast on BBC1.
 * 1988 - Spearhead from Space was released on VHS.
 * 1997 - Part five of the Radio Times comic story Perceptions was first published.
 * 1999 - The Taint was first published by BBC Books.
 * 1999 - The Mary-Sue Extrusion was first published.
 * 2006 - The Sarah Jane Smith audio stories Buried Secrets and Snow Blind were first released by Big Finish Productions.
 * 2013 - Shadow of Death was first released by AudioGO and Big Finish.
 * 2017 - Part one of Invasion of the Mindmorphs was first published in 12DY2 14.