I cannot think of one TV paranormal show that has any credibility. Seriously. You get the fans on your side -yes, "fans" because this is entertainment and NOT reality- and from there you get the TV ratings and the ego boost and then one cast member after another leaves.
The fraud behind the series is exposed and -guess what? The fans don't believe it. Why? "Because dark, negative entities" may have been influencing the show leavers (who swear on their lives that they will never go back to a demonic locations because of how it affected them and their families...until they get a new show and go back there). You get "them" (the fans) to a point where you know they will jump off a bridge if you tell them too and you know the bank account will stay full.
You might even get to the point there you get to spout your own ('very important' of course) theory -make it almost religious because, you know, you've been 'possessed', you've fought a fictional character called "Satan", beaten back demons -all on a weekly basis while finding that every single house in the United States is a portal to hell. Fake demonic possession is always good as are occasional not so great actors who introduce you to things like a demonic phenomena of "world wide proportions" that no one has heard before.
"There is one born every minute"
And when these TV legends in their own bank balance get caught out what then? All the fans understand it is the "establishment" or dark paranormal forces trying to hide the truth. And the very many radio and other pod-casts that feed off of all this because kudos rubs off (like a fake sun tan): they start to ask questions. Well, they "start" but then they realise that "tear down the stars you tear down your own show" which if you know your entertainment industry you'll know about.
Suddenly these people start to offer, or try to offer excuses. "Maybe" this or "Maybe" that or "We don't really know -he's come up against some dark stuff in the show". Then the 'stars', the bigger con-men, of each show will criticise and accuse one another of fakery, fraud...yeah, it's entertaining to see the old con-man versus con-man fighting to see who has the biggest bank account. The TV studios don't care because it's all free publicity and the advertisers are just cash-cows anyway (you think they watch the shows? They just get fed the "We have ----- viewers" that's it).
Like fake 'monster shows' -Alaskan Monsters, Mountain Monsters -you know the list. No pretence at reality and, guess what? Despite the worst fakery possible the TV fans believe it all. How many series has the entertainment show Finding Bigfoot had? 11 or 12? If the TV company was that interested they would have spent the money and gotten the evidence by now. I do not doubt that those involved are genuine -I believe they are- but come on. Watch Series 1 Episode 1 and you've seen every episode ever made, with location swaps and end of series "let's meet the team" episodes. If you don't know the team after ten years see a doctor.
Do not even get me started on the UFO fraud across TV and the internet. Hey, Trump is President -NOW we'll get full disclosure! The fake UFO/alien pundits have said full UFO disclosure is "next year" since 1999. Luckily I never held my breath.
It is all entertainment. There are real investigators of Sasquatch, the paranormal and so on out there. No TV money or crews. No big fan club -"fans" do not even come in to it. You start building up fans -jump ship!
The only words you need to know are "TV"/"Money making" and "fraud".
Until someone decides they really want to show the truth, that is all you'll get.