I'm sure most of the show is real. They really go to locations and set up equipment and poke around in the dark. However, none of their "evidence" for ghosts can be real as ghosts are not real, therefore there can be no evidence for them. The evidence itself may be real, but it is not evidence of ghosts.
So what you are saying is that ghosts can not possibly exist?
I just couldn't believe what I saw when I actually watched that first episode of "Ghost Hunters Academy." Ugh.
Think about it if you hafta!