The really good thing about having back to back episodes is not having to wait a week for a story arc to play itself out. Mandy Moore gets the patented Scrubs Celebrity Fan Blower Treatment and between this and her guest arc on Entourage has proven herself to be a good sport about stuff like this.
Although they seem to be making J.D. goofier than normal this season even by Goofy J.D. Standards.
I caught my first episode of the "new show" with Jon Hamm and Charlene Yi - and I was struck with how quiet the audience is. Conan is still strong and funny as hell, but he doesn't have the same crowd to feed off.