Last updated 20 August 2023

Part Three

Part Three

Series Episode Number: 660

World Premiere: Mon 19 Oct 1987 - 7:36pm BST [BBC One] (United Kingdom)
First Broadcast: Tue 23 Jun 2015 - 8:00pm EDT [Retro TV]
Running Time: 24 minutes 30 seconds

5.00 Million (UK)

Appreciation Index: 58 (UK)

Chart Position: 79 () (UK)

Recorded on Wed 17 Jun 1987 in Television Centre 1

Mel and Pex play cat and mouse with the lethal cleaner robots while the Doctor and the surviving Kangs learn all about Kroagnon the Great Architect.