Season 6 Episode 12 episode 12

The Big Bang Theory Season 6 Episode 12 "The Egg Salad Equivalency" Photos

The Big Bang Theory Season 6 Episode 12 "The Egg Salad Equivalency" Photos

Here are the official promotional photos of The Big Bang Theory season 6 episode 12 "The Egg Salad Equivalency" -- which airs on Thursday, Jan. 3rd on CBS.

Source: CBS