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Horizon

Season 11 · Episode 1

A Matter of Self-Defense

0.01h 0mJanuary 7, 1974

This episode of Horizon explains how our body fights infections and cancers and brings us up-to-date on recent research in immunology.

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Episode 1A Matter of Self-Defense
Episode 2Bird Brain - The Mystery of Bird Navigation
Episode 3Never Too Late to Learn
Episode 4The Great Fish Hunt
Episode 5Pedal Power
Episode 6The Writing on the Wall
Episode 7Where Did the Colorado Go?
Episode 8The Future Goes Boom
Episode 9Fusion: The Energy Promise
Episode 10The First Ten Years
Episode 11This Yankee Dodge Beats Mesmerism Hollow
Episode 12The Hunting of the Quark
Episode 13A Noah's Ark for Europe
Episode 14Bridges: When It Comes to the Crunch
Episode 15Search for Life
Episode 16The Secrets of Sleep
Episode 17Who Needs Skills?
Episode 18Hills of Promise
Episode 19The Race for the Double Helix
Episode 20The Immigrant Doctors
Episode 21Mines, Minerals and Men
Episode 22What Price Steak?
Episode 23Listen and Be Loyal
Episode 24Adam or Eve?
Episode 25An Unholy Scramble
Episode 26Do as You Are Told
Episode 27The First Signs of Washoe
Episode 28The Other Way
Episode 29The Greatest Advance Since the Wheel?
Episode 30Joey
Episode 31The Neglected Harvest
Episode 32How on Earth Did They Do That?
Episode 33The Lysenko Affair