I actually loved the Penn and Teller bit. There's also the fact that Teller is a certain significant character on BBT, it made me smile.
I'm still holding out for a quick resolution to this Mandy business next season since it's really brought the whole tone of the show down.
All in all, a decent episode. Georgie needs to learn maturity and Meemaw isn't really helping there. And I feel for George Sr, especially since he has to deal with tools like Roy.
Oh, and that little conversation between Missy and Sheldon was the best scene. At this point, Missy is really the only one I'm invested in and she deserves everything.