Part One
Series Episode Number: 550World Premiere: Sat 28 Feb 1981 - 5:09pm GMT [BBC One] (United Kingdom)
First Broadcast: Sun 27 Dec 1981 - 11:00pm CST [WTTW 11 Chicago]
Running Time: 24 minutes 32 seconds
7.10 Million (UK)
Chart Position: 84 () (UK)
Recorded on Thu 08 Jan 1981 in Television Centre 3
Deciding to repair the TARDIS' chameleon circuit, the Doctor goes to Earth to find a real police box. But an old enemy is one step ahead of him.