This Week in United Kingdom

The Keys of Marinus
Last updated 13 January 2025
5:15pm-5:40pm BST (16:15 GMT) < > « »

(actually broadcast at 17:17:49)
BBC One - see BBC's Genome Entry

Featuring: William Hartnell, Carole Ann Ford, Jacqueline Hill, William Russell, Stephen Dartnell, Robin Phillips, Katharine Schofield
The Doctor solves the murder mystery and finds the final missing key. With Ian now free, the travellers return to the island only to discover that Arbitan has been murdered.
Synopsis Source: Doctor Who Guide
Broadcast Source: BBC
Ratings Information:
Consolidated figures: 6.900m viewers (+7 days), 43rd place, AI 63