From saying Bazinga to singing Soft Kitty to Sheldon's schedule, we ranked "The Big Bang Theory's" running jokes from throughout its historic 12 season run.

Fans of "The Big Bang Theory" worry about Leonard's fate, due to a passing comment from Jim Parsons' adult Sheldon on the ...

"The Big Bang Theory" gave us a lot of laughs over the years, but the sitcom could also be very sad. These episodes will have ...

"The Big Bang Theory" featured many recurring habits that defined Sheldon Cooper (Jim Parsons), but few were as consistent as ...

The Big Bang Theory has cemented its status as an iconic comedy series in the industry for over ten years! The combination of ...

The Big Bang Theory is, at its heart, about relationships. The geek culture references, cameos, and science speak are dressings, and funny ones at that. But from the very beginning, the series set ...

A truly great TV catchphrase is a rare thing indeed. Not only must it be so fully embraced by the public that it takes on life outside the television screen, but it also must speak volumes about the ...

The Big Bang Theory brings forth all the elements that are needed for a great sitcom. There is humor, emotions, and struggles ...