Louis CK was really good. The special airs on HBO in April.
After they finished filming the hour for the special he came back out and had about 15 minutes of newer material, and that was my favorite part (probably because his timing was more natural, and wasn't trying to fit everything into a specific time frame). He talked about how getting into shape for him these days isn't about losing weight, it's about becoming strong enough to support his weight, etc. Good stuff.