![](https://image.tmdb.org/t/p/w342/xinqAmYrZ1TEwowcQhgTkZVtVE0.jpg)
1154.907 Views
UNIT are invited to observe a demonstration of the new TOMTIT machine, unaware its creator, Professor Thascales, is actually the Master.
First Air Date : Nov 23, 1963
Last Air date : Dec 06, 1989
Episode : 694 Episode
Season : 26 Season
Runtime: 48 minutes
Studio: BBC One, BBC Television
Country: United Kingdom
Cast: Sylvester McCoy