"South Park" does go overboard with the potty humor at times, but the recent episode where they gutted John Edward, showed exactly how he does his stupid act, then had space aliens arrive to give him the award for "Biggest Douche In The Universe" was, IMHO, one of the greatest things ever shown on TV.
I haven't seen anything in Randi's actions to be outraged by, he seems to be interested in revealing fraud. I don't have a problem if he were even exposing "faith healers". A church music leader that I know jokingly referes to televangelists as the "professional wrestling" of religion. Everyone on tv isn't a fraud but there are a number of charletans.