Personally I like the "croc shows" and "out in the jungle" and seeing reptiles or any animal in the wild. I'm not sure how one would cater a show your describing. Are you wanting to teach anyone willing to watch how to keep their own reptiles? Or just info on specific reptiles in captivity?...which would lead to basically the same thing.

Someone with the right means could make their own short videos or series and start out doing like podcasts or something.