Filmed 19th December: « »

1968

Hampstead Heath
(The Seeds of Death)

1975

BBC Television Centre
(studio: The Seeds of Doom)

1982

BBC Television Centre
(studio: The King's Demons)

1984

BBC Television Centre
(studio: Timelash)

2007

Newbridge Memo
(The Doctor's Daughter)

2007

Mamhilad Park Industrial Estate
(The Doctor's Daughter)