The Doctor Who Production Diary: May 18th

1968 Debut broadcast of The Wheel In Space episode four on BBC One The Wheel In Space
1971 Jon Pertwee is contracted for Season Nine The Third Doctor
1974 Debut broadcast of Planet Of The Spiders episode three on BBC One Planet Of The Spiders
1978 Mary Tamm is contracted to play Romana in the final four serials of Season Sixteen, beginning with The Stones Of Blood The First Romana
1982 Recording for Arc Of Infinity takes place at BBC Television Centre Studio 1 in White City, London Arc Of Infinity
1988 Recording for The Greatest Show In The Galaxy takes place in Warmwell, Dorset The Greatest Show In The
Galaxy
2009 Recording for The End Of Time takes place at Upper Boat Studios in Upper Boat, Wales The End Of Time
2013 Debut broadcast of The Name Of The Doctor on BBC One and BBC One HD The Name Of The Doctor
2015 Recording for The Zygon Invasion / The Zygon Inversion takes place in Barry, Wales The Zygon Invasion / The Zygon Inversion