Series 4 (Lethbridge-Stewart)

The Enfolded Time  • The Creatures in the Cave  • In His Kiss  • The Lock-In  • The Black Eggs of Khufu  • The Band of Evil  • The Playing Dead  • The Last Duty

The Bledoe Cadets and the Bald Man of Pengriffen  • Slouching Towards Det-Sen  • Lucy Wilson  • Time and Again  • The Cruel Oil  • The Two Brigadiers  • '48 Crash

The Contented Mind  • The Runaway Bomb  • United in Blood  • All the Kings Men  • The Great Magician and the Spirits of the Vasty Deep  • The Slow Invasion  • The Case of the Missing Fairy  • What's Past is Prologue  • The Note  • Piece of Mind