Watch "The Big Bang Theory" season 6 episode 13 "The Bakersfield Expedition" online for free live tonight.

Last week's "Big Bang Theory" was the most popular ever, racking in over 19 million viewers. Will they continue breaking their own records this week? Most likely, since tonight's episode, season 6 episode 13 "The Bakersfield Expedition," is when the gang decides to go to Comic-Con.

Sheldon, Howard, Raj, and Leonard decide to visit Comic-Con, one of the biggest conventions in US, and decide to dress up as their favorite "Star Trek: The Next Generation" characters, with Sheldon as Data and Leonard as Jean-Luc Picard. Raj looks pretty great too. Previous cast members of the hit "Star Trek: The Next Generation" have actually appeared on the show before, including LeVar Burton and Wil Wheaton. From what it looks like in the preview (which you can watch below), the guys get into a little trouble, when a bunch of hooligans steal Leonard's car, leaving the guys stranded.

As for the girls, we see Penny, Bernadette, and Amy drop by Stuart's comic book store, and, as you can see from the promo, the guys in the store are absolutely shocked that actual girls are in their store. The girls are kinda confused (and maybe a little creeped out), but Amy embraces the attention.

The official synopsis is as follows: While the guys take a road trip to a comic book convention dressed as "Star Trek: The Next Generation" characters, the girls stay home and try to interpret a comic book, on THE BIG BANG THEORY, Thursday, Jan. 10 (8:00 - 8:31 PM, ET/PT) on the CBS Television Network.

You can watch "The Big Bang Theory" on CBS at 8 PM EST, or you can watch it online by clicking the link below. But, please, do so at your own risk.

Watch "The Big Bang Theory" season 6 episode 13 "The Bakersfield Expedition" online for free live.

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