In regards to the show;
When the two rooter guys were taunting the spirit to come out and show itslef, one of them felt a sharp pain on his backside. He found welts and a deep scratch. I dont know if it was just me but I got the impression of something evil with a claw.
Now THAT was interesting! Yes, I got the feeling that it was an evil presence too. I wonder why they didn't have a priest do a blessing on the house? Also, I wonder why they didn't try to find out what had changed since, according to what I thought I heard, things just started happening in the house after no activity for years. There was a weird looking statue sitting on a table in the background - looked like something from africa or south america. I know, I know - tin foil hat time! My ex-neighbors were experiencing strange things in their house after somebody gave them a really weird-looking figurine. They took it out of the house and trashed it and no more problems. Probably coincidence - but who knows.