Based on what I've seen concerning the contestants on this show my thoughts are...
1. There is a secret agency somewhere in NYC that specializes in character actors who pose as guests and make the rounds of all talk shows, reality shows, and infomercials. The younger females do Girls Gone Wild tapes on the side.
OR...
2. Jerry and all the above mentioned suppliers of trash "entertainment" are hiring the mentally and emotionally handicapped. If this is it, they're probably even getting some kind of tax deduction.
Nothing against people with problems like this - it's just that, low class doesn't even begin to describe this twisted perversion of a TV show. There has GOT to be more to it.