S1974.E1 ∙ Journey to the Outer LimitsThu, Jan 10, 1974People confront some of nature's greatest challenges and a mountain climb.Rate
S1974.E2 ∙ The Big CatsFri, Mar 15, 1974Shows how lions, tigers, leopards, jaguars, and other big cats are endangered by man's encroachment on their habitats.Rate
Top-ratedS1974.E3 ∙ Bushmen of the KalahariFri, May 17, 1974Shows how Bushmen are adapting to change after centuries of being hunter-gatherers.8.9/10 (9)Rate