I hadn't heard of this show, so I watched the trailer. Igads. What a mess.
I am overall a total skeptic, and I don't believe there is a bigfoot. That said, if you do go up to the Pacific Northwest and hike into some of these areas - it is so overgrown, dense, and uninhabited by man that after an arduous journey only one mile in, you are already nearly overwhelmed by the terrain and your remoteness. And then when you think about how this forest may stretch out hundreds of square miles... well, you start to see in very practical terms how arrogant of us it would be to claim we are absolutely sure there are no sasquatch living in there. We would have no way of knowing.
That said, this show looks like a joke.