I might be wrong, but I believe everyone, however mundane their life might appear on the surface, has at least one incredible story to tell.
I would just have a show talking to anyone. And simply ask "what's the most incredible thing that's ever happened to you?" Or some such thing. Know that some people may not even realize that their experiences are interesting, or it may even be something from way back that all their friends are sick of hearing about, but trust me, such a show would work and would be watched.
It would be the host's job to root out the things of interest, but that's easy enough.
Good luck! And if you get on the air, count me in.