Doctor Doctor Who Guide

Last updated 09 January 2020


Part Three

Series Episode Number: 442

World Premiere: Sat 15 Jan 1977 - 6:22pm GMT [BBC One] (United Kingdom)
First Broadcast: Fri 23 May 1980 - 5:30pm CDT [WTTW 11 Chicago]
Running Time: 24 minutes 40 seconds

11.30 Million (UK)

Appreciation Index: 59 (UK)

Chart Position: 20 () (UK)

Recorded on Mon 25 Oct 1976 in TC3
BBC Genome Project: see entry

Episode listing on BBC website


Penetrating the barrier with Leela, the Doctor enters the spaceship which is controlled by the Tesh. There he discovers the truth about Xoanon and realises that he is to blame.