Last updated 09 January 2020

Episode One

Episode One

Series Episode Number: 135

World Premiere: Sat 5 Nov 1966 - 5:49pm GMT [BBC One] (United Kingdom)
First Broadcast: Sat 19 Nov 2016 - 8:25pm EST [BBC America]
Running Time: 25 minutes 43 seconds

7.90 Million (UK)

Appreciation Index: 43 (UK)

Chart Position: 44 () (UK)

Recorded on Sat 22 Oct 1966 in Riverside 1
Archive State: Missing

Ben and Polly suspect that the 'new' Doctor is really an imposter. The TARDIS lands on the planet Vulcan where a murder has been committed.