John Doye

The TARDIS arrives in London in 1966 and the First Doctor and Dodo visit the Post Office Tower. There they meet Professor Brett, whose revolutionary new computer WOTAN (Will Operating Thought ANalogue) can actually think for itself and is shortly to be linked up to other major computers around the world — a project overseen by civil servant Sir Charles Summer.

King Henry II of England has trouble with the Church. When the Archbishop of Canterbury dies, he has a brilliant idea. Rather than appoint another pious cleric loyal to Rome and the Church, he will appoint his old drinking and wenching buddy, Thomas Becket, technically a deacon of the church, to the post. Unfortunately, Becket takes the job seriously and provides abler opposition to Henry. Preserved by the Academy Film Archive in 2003.

Jane Marple solves the mystery when a local woman is poisoned and a visiting movie star seems to have been the intended victim.