The Doctor Who Production Diary: April 26th

1928 Birth of Donald Cotton (bio), writer
1966 By now, Innes Lloyd and Gerry Davis have decided to drop not only Steven but also Dodo from Doctor Who, and replace them with new companions Ben Jackson and Polly; Peter Purves' and Jackie Lane's departures from the programme are announced to the press Dodo
Chaplet
1967 Recording for The Evil Of The Daleks takes place at the BBC Television Film Studios in Ealing, London The Evil Of The Daleks
1968 Recording for The Wheel In Space takes place at BBC Television Centre Studio 3 in White City, London The Wheel In Space
1968 Recording for The Dominators takes place at the BBC Television Centre Puppet Theatre in White City, London The Dominators
1969 Debut broadcast of The War Games episode two on BBC One The War Games
1971 Recording for The Daemons takes place in Ramsbury, Wiltshire The Daemons
1972 Recording for The Time Monster takes place at BBC Television Centre Studio 3 in White City, London The Time Monster
1975 Debut broadcast of Revenge Of The Cybermen episode two on BBC One Revenge Of The Cybermen
1977 The first of several days of recording for Horror Of Fang Rock at the BBC Visual Effects Workshop in Acton, London, concluding on May 2nd Horror Of Fang Rock
1977 Recording for The Invisible Enemy takes place at BBC Television Centre Studio 6 in White City, London The Invisible Enemy
1982 Recording for Snakedance takes place at BBC Television Centre Studio 6 in White City, London Snakedance
2008 Debut broadcast of The Sontaran Stratagem on BBC One The Sontaran Stratagem / The Poison Sky
2011 Recording for The Girl Who Waited takes place at Upper Boat Studios in Upper Boat, Wales The Girl Who Waited
2011 Recording for The Wedding Of River Song takes place in Wales, at Cardiff and Penarth The Wedding Of River Song
2012 Recording for Asylum Of The Daleks takes place at Roath Lock Studios in Cardiff, Wales Asylum Of The Daleks
2013 Recording for The Day Of The Doctor takes place at Roath Lock Studios in Cardiff, Wales The Day Of The Doctor