Shows such as this one spawned interest in bigfoot and the unknown for many people. In this episode of Arthur C. Clarke's Mysterious World, they examine evidence of bigfoot and the yeti.
This episode is divided equally between considering evidence for the Bigfoot and Yeti. Interviewees for the segment on the Yeti include Don Whillans, Lord Hunt and Eric Shipton. Lengthy consideration is given to the Patterson–Gimlin film, and interviewees include Grover Krantz – who demonstrates several casts of alleged Bigfoot tracks that he feels bolsters his belief that the creature represents a relative of Gigantopithecus.
Clarke concludes that, although Russian scientists who studied the Patterson–Gimlin film declared the stride to be 'quite inhuman', special effects used in the 1968 movie 2001: A Space Odyssey showed that it is possible to create very convincing ape-men. He also notes that it would be very difficult for a creature such as Bigfoot to remain undetected in North America.