This Week in United Kingdom

The Invisible Enemy: Part Four

Last updated 09 January 2017

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Broadcast: Saturday 22nd October 1977
6:10pm-6:30pm BST (17:10 GMT) < > « » Premiere

< > « »
(actually broadcast at 18:12:52)
BBC One

Featuring: Tom Baker, Louise Jameson, John Leeson, John Leeson, Frederick Jaeger, Michael Sheard

The Nucleus has escaped the Doctor's body and grown to human size. Its plans to spawn and infect the whole galaxy are nearing fruition. And it looks like K-9 has a new master

Synopsis Source: Doctor Who Guide

Broadcast Source: BBC

Ratings Information:

Consolidated figures: 8.300m viewers (+7 days), 50th place, AI 60