The Doctor Who Production Diary: August 20th

1932 Anthony Ainley (the Master) is born The
Master
1943 Percy Kent-Smith (aka Sylvester McCoy, who played the Seventh Doctor) is born The Seventh Doctor
1962 Sophie Aldred (Ace) is born Ace
1963 Bernard Lodge of the BBC Graphics Unit records the Doctor Who title sequence used from 1963 to 1967 The First Doctor
1964 Due to a contract dispute with the regular cast, Verity Lambert decides that Jenny will not be retained as a new companion; Pamela Franklin is subsequently replaced in The Dalek Invasion Of Earth by Ann Davies The First Doctor
1977 Recording for Image Of The Fendahl takes place in BBC Television Centre Studio 6 Image Of The Fendahl
2004 Recording for Aliens Of London / World War Three takes place at Unit Q2 Aliens Of London / World War Three
2007 Location filming for The Unicorn And The Wasp takes place in Llansannor, Wales The Unicorn And The Wasp
2009 Location filming for Vincent And The Doctor takes place in Pentre Meyrick, Wales Vincent And The Doctor
2012 Location filming for The Snowmen takes place in Bristol The Snowmen