Great Show, at least they try for scientific methodology. I have emailed them with ideas for more quanitative equipment. Example being..... supposedly batteries often die around ghosts, so........ take or better yet make a battery and surround it with instrumentation and try to get the ghost to interact with it.
If and when ghost interacts, what happends? monitor the PH, monitor the temp, put a constant low load on battery and watch amperage. I believe more detailed specifics might yield more info as to what is going on.
Ghost Hunters (The Atlantic Paranormal Society) has seminars at various times across the country, usually Jason or Grant and some other team members conduct these. Cost is about $200ish per person. More info available here:
The Atlantic Paranormal Society (TAPS)
If and when, time and money works out, it would be interesting to talk to them in person.
My background is Physics/Electrical Engineering, I have seen/heard a couple of things that defy conventional/normal explanation. One event I reached for a rational explanation, only to have it repeated, as if someone/something wanted to show me otherwise.
What we interact with, I cant say for sure, Ghosts, Demons, Angels, but I'm sure on occasion there is interaction with the paranormal. Personally, I find it fascinating, but would and do not encourage any paranormal interaction. If "they" want to interact fine, but I dont want to encourage.