Rock Band making its way onto one of the top-rated sitcoms, as well as the smoke monster having its way with a French dude on Lost, highlighted the past week's worth of new episodes.
Here's a look at a few of the top developments across the primetime dial...
- Sheldon sang a duet in Rock Band with Leonard's mom on The Big Bang Theory. It was a lot funnier than it reads.
- Silver got even more bonkers on 90210. This show is starting to get good.
- The smoke monster returned to Lost - and severed some French guy's arm from his body!
- Boobs abounded on 30 Rock: Salma Hayek talked about hers, while one of Liz Lemon's popped out (the uglier one, unfortunately).