I don't have cable...but I've noticed lots of articles and such for various "reality shows" on different networks...it does seem excessive, but then again I've been guilty of watching one or two on network tv.
Guilty pleasures: WifeSwap, SuperNanny and I was hooked on For Love or Money in the first and second seasons
I hate myself afterward, but once in a while reality shows capture my interest...
Even with that I still claim to hate them.