It's been forever since we saw the last episode of The Big Bang Theory. Come on, it was last year after all! Anyway, there's finally a new sneak peek for the upcoming episode "The Holiday Summation". 

We already know that ShAmy visit Mary in Texas, Leonard and Penny buy a Christmas tree and Bernadette and Howard share the joys of being parents with the group... Looks like things aren't going as smooth as they had expected! 

Check out the sneak peek below. 


The Big Bang Theory returns tomorrow at 8/7c on CBS.