The mid-1970s were Bigfoot's heyday. He starred in an indie feature film called Sasquatch: The Legend of Bigfoot that we kids cried to go see ("Seven Years in the Making!"). He battled bionic man Steve Austin on TV and his likeness was used for a popular doll. He later became the star of a Sid & Marty Krofft 70s kiddie show called "Bigfoot & Wildboy". Those were glorious days for the hairy dude.
By the time, Harry and the Hendersons came along in 1987, he was already a has-been.
Some legends say that Bigfoot was forced to shave down in 1980 to find work on a TV detective series.