We're showing off our Klingon skills and counting down our top 10 'Big Bang Theory' moments! What's your favorite moment? Check out 'The Big Bang Theory' Thursdays at 8/7c. Only CBS!

Here's where season 4 left off - Leonard and Priya are dating, Bernadette and Howard are engaged and in the midst of it all Penny and Raj spend a drunken night together. Oh boy! Find out how it all works out Thursdays at 8/7c only on CBS!

You love the stache on 'Blood Bloods,' now it's laying down the law on some of your other favorite CBS shows! You've just been stache'd!!! Only CBS!

Check out Sheldon showing off his mad rapping skilz. Who knew he was such a rhythmic genius?! Don't miss new episodes of the Big Bang Theory Thursdays at 8pm on CBS!

Check out the super hot superhero T-shirts worn by the super hot dudes of The Big Bang Theory!

Ok to catch you up- Penny & Leonard were dating then they broke up (no thanks to Wil Wheaton!) and in a crazy turn of events Sheldon found his perfect match... has the world gone mad? You don't want to miss what happens Thursdays at 8/9c ...

We sat down with Simon Helberg from 'The Big Bang Theory' and got the scoop about his character's wardrobe, living with his mother, and he even shares some great impersonations with us! Don't miss The Big Bang Theory Thursdays at 8pm on CBS!

Howard takes a moment in the tub to fantasize that Katee Sackhoff from Battlestar Galactica is in the tub with him. Boy, is he gonna be disappointed!! Catch 'The Big Bang Theory' Thursdays on CBS!