What is Pawn Stars? Is it Legit?

The show is very popular and has been airing for a few years now, but, is it real or fake?

Pawn Stars is a show based out of Las Vegas, Nevada on the History Channel.  Each episode has 3 customers come in to try to sell something that is somewhat historic.  The guys that run the show are usually very knowledge about the item… maybe too knowledgeable? The question is whether or not the show is real or fake.  Is it Legit? So many reality shows these days are fake.

I found a guy that has actually been on the show and speaks out in this video that includes clips of him on the show as well.

A real person from Pawn Stars is the show fake?