Part One
Series Episode Number: 631World Premiere: Sat 2 Feb 1985 - 5:21pm GMT [BBC One] (United Kingdom)
First Broadcast: Sun 6 Apr 1986 - 11:00pm CST [WTTW 11 Chicago]
Running Time: 45 minutes 1 seconds
6.30 Million (UK)
Appreciation Index: 64 (UK)Chart Position: 111 () (UK)
Recorded on Sun 18 Nov 1984 in Television Centre 1
BBC Genome Project: see entry
People cannot sleep in the town of Killingworth and the Doctor realises it is the work of a renegade Time Lord, the Rani, who has teamed up with the Master to cause chaos
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