1977-10-07: The Sunspot Mystery
1977-09-30: The Cry for Help
1977-09-23: Darwin's Dream
1977-09-16: 40 Years of Murder
1977-09-09: Blueprints in the Bloodstream
1977-09-02: The River That Came Clean
1977-08-26: Horizon 2002
1977-08-05: The Green Machine
1977-07-29: Silent Speech
1977-07-22: The Trouble with Medicine
1977-07-15: The Amazing Doctor Newton
1977-04-01: Genetic Roulette
1977-03-18: Dawn of the Solar Age
1977-03-11: One of Nature's Hotels
1977-03-04: The Red Planet
1977-02-25: Hunters of the Seal
1977-02-18: The Guinea Pig and the Law
1977-02-04: The Human Animal
1977-01-21: The Ape That Stood Up
1977-01-14: The Pill for the People
1977-01-07: A Smile for a Crocodile
1976-12-13: Half-Way to 1984