Finding Bigfoot: "Squatchploitation" airs tomorrow at 10:02 PM on Animal Planet. Here's the episode description:
"The team returns to Louisiana to a bigfoot hot spot, Caddo Lake. After the team reminisces about the 1970s monster films shot at this location, they meet up with witnesses and finally head out for an eventful night investigation in the bayou."
The bigfoot film Creature from Black Lake was filmed at Caddo lake in the '70s. It is one of the cult classic bigfoot films like The Legend of Boggy Creek.
Update: 6/21/15 - this was a very good episode! Great witnesses and investigations, and Lyle Blackburn was on!