I watched the episode as well, thought the same thing. That son gave me a weird vibe the moment he was on camera, then he started talking and I turned to my mom and told her, "how much you wanna bet he lets it slip he was dabbling in some stuff he shouldn't have been?" and not even ten minutes later he was confessing to conjuring in the basement.
It looks like it may be good, I am a fan of Jack's ever since their original reality show back in the early 2000's. And I recently started watching his and Ozzy's show, "Ozzy and Jack's World Detour", which is beyond hilarious. Ozzy is just hilarious. Kind of makes me wish he was doing this show with Jack. Now that would be something to watch. Ozzy Osbourne "The Prince of Darkness" hunting ghost and looking for "Portals to Hell", I would pay to watch that.