Timothy Combe

Professor Emil Keller has created a machine that can pacify even the most dangerous of criminals. But when the Doctor and Jo arrive at Stangmoor Prison for a demonstration, things start to go horribly wrong - especially when they discover that the Doctor's old enemy the Master is responsible for the machine.

Investigating mysterious power failures and a death at an underground research centre, The Doctor discovers a colony of Silurians - prehistoric, intelligent reptiles who went into hibernation before man evolved. But now they have woken up, and they are prepared to wipe out mankind with a killer plague to get their planet back.

Don't Lose Your Head is a documentary about the making of Doctor Who story The Reign of Terror.

Spearhead from Space marked not only the arrival of a new Doctor but also the transition from black and white to colour as the show moved into a new decade. This documentary looks at the challenges faced by programme makers during this period.

The War Games saw the end of black-and-white Doctor Who. This documentary examines the artistic limitations - and advantages - of monochrome.

A look at the appearances of the Daleks and Davros in the classic Doctor Who era.

Professor Emil Keller has created a machine that can pacify even the most dangerous of criminals. But when the Doctor and Jo arrive at Stangmoor Prison for a demonstration, things start to go horribly wrong - especially when they discover that the Doctor's old enemy the Master is responsible for the machine.

Investigating mysterious power failures and a death at an underground research centre, The Doctor discovers a colony of Silurians - prehistoric, intelligent reptiles who went into hibernation before man evolved. But now they have woken up, and they are prepared to wipe out mankind with a killer plague to get their planet back.