Comedy Centrals Roasts are funnier than all and so not suitable for children.
I have never seen such a collection of put downs that have me rolling than these. A quick run down of the show is here. You can view video clips here. Type "roasts" in the search box.
I've seen Flava Flav's, William Shatner's, and Bob Saget's. Completely adult entertainment, but worth mentioning.