Episode One
Series Episode Number: 506World Premiere: Sat 1 Sep 1979 - 6:13pm BST [BBC One] (United Kingdom)
First Broadcast: Sun 11 Oct 1981 - 11:00pm CDT [WTTW 11 Chicago]
Running Time: 24 minutes 3 seconds
13.00 Million (UK)
Appreciation Index: 67 (UK)Chart Position: 28 () (UK)
Recorded on Mon 02 Jul 1979 in Television Centre 3
The TARDIS lands on the old Dalek homeworld of Skaro where the Doctor and the newly regenerated Romana discover that someone is digging deep beneath the planet's surface.