Part Three
Series Episode Number: 446World Premiere: Sat 12 Feb 1977 - 6:18pm GMT [BBC One] (United Kingdom)
First Broadcast: Thu 29 May 1980 - 5:30pm CDT [WTTW 11 Chicago]
Running Time: 23 minutes 51 seconds
13.10 Million (UK)
Chart Position: 15 () (UK)
Recorded on Wed 07 Dec 1977 in TC8
One of the crew is the insane Taren Capel, who is using robots to carry out the murders. The Doctor discovers that there are also others who aren't what they appear to be either.
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