Horizon — Season 11

Episodes

• E1 A Matter of Self-Defense1974-01-07—
• E2 Bird Brain - The Mystery of Bird Navigation1974-01-14—
• E3 Never Too Late to Learn1974-01-21—
• E4 The Great Fish Hunt1974-01-28—
• E5 Pedal Power1974-02-04—
• E6 The Writing on the Wall1974-02-11—
• E7 Where Did the Colorado Go?1974-02-18—
• E8 The Future Goes Boom1974-03-04—
• E9 Fusion: The Energy Promise1974-03-11—
• E10 The First Ten Years1974-04-22—
• E11 This Yankee Dodge Beats Mesmerism Hollow1974-04-29—
• E12 The Hunting of the Quark1974-05-06—
• E13 A Noah's Ark for Europe1974-05-13—
• E14 Bridges: When It Comes to the Crunch1974-06-03—
• E15 Search for Life1974-06-10—
• E16 The Secrets of Sleep1974-06-10—
• E17 Who Needs Skills?1974-06-24—
• E18 Hills of Promise1974-07-01—
• E19 The Race for the Double Helix1974-07-08—
• E20 The Immigrant Doctors1974-07-15—
• E21 Mines, Minerals and Men1974-07-22—
• E22 What Price Steak?1974-07-29—
• E23 Listen and Be Loyal1974-08-05—
• E24 Adam or Eve?1974-08-12—
• E25 An Unholy Scramble1974-09-02—
• E26 Do as You Are Told1974-10-28—
• E27 The First Signs of Washoe1974-11-04—
• E28 The Other Way1974-11-11—
• E29 The Greatest Advance Since the Wheel?1974-11-25—
• E30 Joey1974-12-098.0
• E31 The Neglected Harvest1974-12-16—
• E32 How on Earth Did They Do That?1974-12-23—
• E33 The Lysenko Affair1974-12-30—