I agree with micahn on this one, but he forgot to mention they sometimes appear on talk radio shows too. It doesn't take long to figure out who someone has been listening to, reading, or watching once they start delving into the supernatural/paranormal existence of bigfoot. Their responses to questions appear almost cookie cutter style, or canned created by whomever developed the original theory of why bigfoot is supernatural/parnormal that they've embraced. Rule out all of the logical possibilites, before grasping for the paranormal. A good amount of people never do that, they simply jump on the paranormal wagon, because using that as a reason, they can mold their answer anyway they want to make it fit. Who can prove them wrong?
Just for an example of ruling out all logical causes for something called paranormal. I worked at a mental health facility, and before I was working there they had a client, who was autistic. This autistic person loved to sit on a bench at the end of the hallway, and play with aluminum cans. He'd squeeze them and roll them in his hands to make that crinkling sound. He'd do that for hour after hour after hour. People that worked there got use to hearing that noise, and when they heard it, they would say there's so and so playing with the cans again. Eventually this client died, and soon afterwards some of the employees started to say they could hear him still at the end of the hallway playing with those cans. It freaked a few of them out so bad, I guess they half expected his ghost to materialize in front of them and scream BOO, that they quit. When I came to that facility, I heard the stories, and talked to a few who claimed to have witness it, and yes, to them too it sounded just like him sitting at the end of the hallway playing with the cans.
A few weeks later, I was working the nightshift alone, and after putting the other clients to bed, I was sitting at the table and heard the clink-clink-clink sound everyone had described. So of course, I got up and peered down the darkened hallway to see if I could see anything. No ghost popped out, no glimmering sheen of ectoplasm, nothing, but the sound continued, for a good ten minutes then it abruptly stopped. One of the clients were on a med schedule, and few hours later I had to go to their room and give them some medication. I did, and after returning to the table, I began to hear the clink-clink-clink sound again.
I sat there for a moment and thought what had I done this time, that was just like what I had done before, and focused on that as a possible clue of what was making the sound. Then it dawned on me, both times I had turned off the hallway lights. The first time they had been on for a few hours, and the last time for only a few minutes, but it was a short time after I turned off the lights, was when the sound started. I turned on the lights again, and studied them. They were recessed into the ceiling, and had aluminum reflectors around the stem of the floodlight type bulbs. What was happening was the heat from the bulbs were heating up those aluminum reflectors. After turning them off, they started to cool down, and the aluminum would start to warp as it cooled. That's what was causing the clink-clink-clink sound and they were aluminum, just like the cans. Nothing paranormal, no ghosts, just a simple explaination for a weird experience.