Last updated 24 March 2024


Episode Eight

Series Episode Number: 227

World Premiere: Sat 21 Dec 1968 - 5:15pm BST [BBC One] (United Kingdom)
Running Time: 25 minutes 3 seconds

7.00 Million (UK)

Appreciation Index: 53 (UK)

Chart Position: 80 () (UK)

Recorded on Fri 08 Nov 1968 in Lime Grove D
Archive State: 16mm t/r



The Cybermen have launched their deadly megatron bomb which will destroy all life on Earth unless the Doctor can deactivate the homing signal.


Production Team hide uncredited
WriterDerrick Sherwin
From a story byKit Pedler
DirectorDouglas Camfield
ProducerPeter Bryant
With thanks to Ministry of DefenseInfo
DesignerRichard Hunt
Script EditorTerrance Dicks
Film CameramanAlan Jonas
Film Sound RecordistBill Chesneau
Film EditorMartyn Day
LightingRobbie Robinson
SoundAlan Edmonds
CostumesBobi Bartlett
Make-upSylvia James
Visual EffectsBill King
Visual Effects Trading Post
Incidental MusicDon Harper
Special SoundBrian Hodgson
Title MusicRon Grainer
and the BBC Radiophonic Workshop
Production AssistantChris D'Oyly-John (uncredited)
Vision MixerJohn Barclay (uncredited)
Grams OperatorDave Silk (uncredited)
Technical ManagerPeter Valentine (uncredited)
Director's AssistantSue Sly (uncredited)
Assistant Floor ManagerSue Willis (uncredited)
Floor AssistantMichael Ward (uncredited)
Film Operations ManagerHugh Wilson (uncredited)
Title Music ArrangerDelia Derbyshire (uncredited)
Title SequenceBernard Lodge (uncredited)