21 February

History of Doctor Who

 * 1970 - DW: Doctor Who and the Silurians, Episode 4, is first broadcast.


 * 1976 - DW: The Seeds of Doom, Episode 4, is first broadcast.


 * 1981 - DW: The Keeper of Traken, Episode 4, is first Broadcast.


 * 1981 - Ron Grainer, composer of the Doctor Who theme, dies.