Thee used to be a show called Finding Bigfoot on, I think, Animal planet. Teams of researchers would go check out big foot sightings, usually in the pacific northwest. they would NEVER find anything conclusive, just lot's of "Yeah, a squatch has been here, see the marking on the tees? That was left by a squatch." They called them squatch, short for sasquatch I guess. They would go out into the night and any sort of sound, or howl was a "squatch" in the distance. They were quite convincing. They had a theory for the "why is there now evidence of one" crowd, but I can't remember. They felt there was a whole society of them and they somehow stayed hidden. It was interesting, but felt very played up for the cameras.