I was hoping for a better example. You should really investigate the show, the people on it, their credentials and qualifications to investigate and research properly.
It is a show to entertain, not a scientific program. Any of their research reviewed? What scientific means are they using? Just because they use some instruments, how do you know it is the correct instrument to detect the supernatural realm?
As to that physical interaction, you should ask even harder question of them. Or, is it because one want to believe, most anything qualifies as evidence?
By the way, if a small % is credible, why not all of their findings? Why cannot they get it right?
This example reminds me of a poster many years ago, most likely at my previous audio board, that brought up a show about some magician who had some interesting tricks to show on TV.