This is a very serious episode about jokes and what's happened to them. Political correctness has infiltrated all of comedy now and the result is sketch comedy, stand-up, movies, and TV are only allowed to offend one group: kids. Comedy is still wildly offensive but only in regards to that group. The end result is the bits become even more disgusting because you're seeing comics handle blacks, Jews, gays etc with kid gloves and then treating children like they're human garbage.