While I am a big fan of Court T.V. (Judge Judy is my favorite! Followed by Peoples Court). I occasionally get a yen for something more substantial. To the magical land of Youtube and I found this great 2 hour debate with Stephen Fry, Christopher Hitchens, and a Catholic Priest and a woman involved with the Catholic Church. It was polite, smart, with some smatterings of humor and of course there was the Q&A session at the end.
It's two hours long, but it's a great watch.