Penny has a strange relationship with her family in The Big Bang Theory, and one mystery doesn't help matters.

Sheldon needs Leonard more now than ever given his split with Amy ... What did you think of the Big Bang Theory wedding? Sound off in the comments below. Big Bang airs Mondays on CBS.

From Penny and Sheldon to supporting stars like Beverly and Mary Cooper, all The Big Bang Theory's heroes have one line that ...

Or is the idea that Penny is now a single woman ... issues that he brought up in the 12 years The Big Bang Theory aired, as opposed to Leonard and Penny splitting up. If this were a situation ...

Finally, a clarification on Leonard's status can be revealed via a The Big Bang Theory reunion something that has been ...

While The Big Bang Theory has plenty of great characters, not all of them stick around until the end of the show.

When The Big Bang Theory first introduced Leonard Hofstadter and Penny, few could have predicted that their unlikely relationship would become one of the series' greatest things.

The Big Bang Theory’s Sheldon Cooper and Leonard Hofstadter ... That sounds a little weird now, knowing how iconic the names Sheldon and Leonard have become. Chuck Lorre and Bill Prady eventually ...

The Big Bang Theory's Leonard Hofstadter was the glue that held his group of friends together. No one helped and supported Sheldon and his unusual demands more than Leonard. He would even stick to ...

See more Behind the Scenes: ‘The Big Bang Theory’ Now that Leonard and Penny are married, how will they tackle the Mandy flap? Leonard didn’t expect to spend his wedding night with Sheldon.