The Doctor Who Production Diary: September 30th

1964 William Hartnell's contract is extended for sixteen episodes starting with The Rescue The First Doctor
1964 William Russell's contract is extended for sixteen episodes starting with The Rescue Ian 
Chesterton
1964 Jacqueline Hill's contract is extended for sixteen episodes starting with The Rescue Barbara 
Wright
1965 Recording for The Daleks' Master Plan takes place at the BBC Television Film Studios in Ealing, London The Daleks' Master Plan
1967 Recording for The Abominable Snowmen takes place at Lime Grove Studio D in Shepherd's Bush, London The Abominable Snowmen
1967 Debut broadcast of The Abominable Snowmen episode one on BBC One The Abominable Snowmen
1974 Recording for The Sontaran Experiment takes place in Manaton, Devon The Sontaran Experiment
1975 Robert Banks Stewart is commissioned to write The Seeds Of Doom The Seeds Of Doom
1978 Debut broadcast of The Pirate Planet episode one on BBC One The Pirate Planet
1981 Recording for Castrovalva takes place at BBC Television Centre Studio 6 in White City, London Castrovalva
1981 Christopher Bailey is asked to provide four minutes' worth of extra material for Kinda after the final episode is found to be severely underrunning Kinda
1982 Recording for Terminus takes place at the BBC Television Film Studios in Ealing, London Terminus
1983 Colin Baker is contracted for the final five episodes of Season Twenty-One, beginning with the last installment of The Caves Of Androzani The Sixth Doctor
1983 Pip Baker and Jane Baker are commissioned to provide a storyline for The Mark Of The Rani The Mark Of The Rani
1987 Graeme Curry is commissioned to write the final two episodes of The Happiness Patrol The Happiness Patrol
2004 Recording for The Unquiet Dead takes place in Penarth, Wales The Unquiet Dead
2005 Recording for Tooth And Claw takes place in Penarth, Wales Tooth And Claw
2009 Recording for The Eleventh Hour takes place in Rhymney, Wales The Eleventh Hour
2009 Recording for The Time Of Angels / Flesh And Stone takes place in Brecon, Wales The Time Of Angels / Flesh And Stone
2010 Recording for The Doctor's Wife takes place at Upper Boat Studios in Upper Boat, Wales The Doctor's Wife
2011 Recording for The Doctor, The Widow And The Wardrobe takes place at Upper Boat Studios in Upper Boat, Wales The Doctor, The Widow And The Wardrobe
2013 Recording for The Time Of The Doctor takes place at Roath Lock Studios in Cardiff, Wales The Time Of The Doctor
2014 Recording for Last Christmas takes place at Roath Lock Studios in Cardiff, Wales Last Christmas
2016 Recording for The Return Of Doctor Mysterio takes place at Roath Lock Studios in Cardiff, Wales The Return Of Doctor Mysterio
2019 Recording for Orphan 55 concludes Orphan 55