I haven't blogged much about the so-called paranormal "reality" TV shows on this website because I really don't think much of them. They may be entertaining in their own way, but they are hardly reality. Very often they are staged, scripted, even faked to produce the needed entertainment value. There's very little "reality" about them. (I think this goes for just about every reality show out there, not just the paranormal ones.)
This is TV, after all, and their primary goal is to engage and entertain. Ask any real paranormal investigator and they will tell you that 90 percent (if not more) of their investigations produce very little evidence; that's just the nature of the phenomena. Yet every investigation by the teams on TV produce all kinds of evidence, from moving chairs and lamps to ghostly manifestations to psychic contact. Virtually every time. That's not likely and it's not believable. But the producers have a show to deliver every week and it would be quite a disappointment to viewers if nothing happened. So they make something happen.
The bottom line: if you like watching these shows, fine... but do not accept them at face value. For more on this subject, read this article.