3 February 1968: broadcast of first episode of The Web of Fear. The Tardis lands in a deserted London Underground; Jamie and Zoe are captured by the soldiers of an outpost and the Doctor encounters the Yeti.
3 February 1973: broadcast of second episode of Carnival of Monsters. The Doctor and Jo explore further inside the Miniscope, and encounter the Drashigs.
3 February 1978: broadcast of third episode of The Armageddon Factor. The Shadow tries to get the first five segments from the Doctor, who escapes; the Marshal launches his "final attack".
3 February 1984: broadcast of fourth epsiode of Frontios. The Doctor gets the Gravis to reassemble the Tardis and removes him from Frontios, neutralising the other Tractators.
3 February 1996: broadcast of third episode of The Ghosts of N-Space on BBC Radio. The Doctor discovers that Vilmio is an immortal alchemist, while the Brigadier and Jeremy attempt to retake the castle.