Well I have no doubt the folks that appear are the real owners. That would be way over the top to hire actors and I do not believe that is at all true. However what comes tru that door is set up. They deliberatly choose folks who have something interesting, weird, historical, etc. If they did not most of what you would see would be power tools and jewerly since those are the most pawned items. Would be very dull TV. Also a lotta those folks are in there cause they need fast money. Remember...it is in Las Vegas so they will settle pretty quick and get back to the tables. I and others have noted some pretty bad calls by their weapons "experts". We have people on this forum who could do a hell of a lot better job than the Pawn Stars weapons "experts".
I clean my weapons in a normal manner. There are some who are so purist they never even oil or clean. That is not right. Dirt, rust, and grime are not natural and should be, IMO, cleaned off in a normal manner. Now, I did not say buff on a power wheel...just keep stuff looking natural.