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Doctor Who Guide: The Keys of Marinus - The Sea of Death
Doctor Doctor Who Guide

Last updated 09 January 2020

The Sea of Death

The Sea of Death

Series Episode Number: 21

World Premiere: Sat 11 Apr 1964 - 5:31pm BST [BBC One] (United Kingdom)
Running Time: 23 minutes 20 seconds

9.90 Million (UK)

Appreciation Index: 62 (UK)

Chart Position: 22 () (UK)

Recorded on Fri 20 Mar 1964 in Lime Grove D
Archive State: 16mm t/r

The TARDIS lands on a remote island, surrounded by a sea of acid. They meet Arbitan, keeper of the Conscience of Marinus who forces the travellers to go in search of five keys.