In The Big Bang Theory's tenth season, the episode "The Hot Tub Contamination" shows Sheldon telling Penny why he does this.

Young Sheldon is filled with small but significant nods to The Big Bang Theory, references that go beyond Sheldon’s quirks and pop culture obsessions. These moments not only tie the prequel to its ...

Actress Melissa Tang is no stranger to the extended The Big Bang Theory world since she has the distinction of appearing on ...

It's not a wedding, it's not a breakup, and it doesn't have a major cliffhanger. So why do fans love this 'Big Bang Theory' ...

In many ways, Leonard and Penny are at the centre of The Big Bang Theory. Leonard and Penny introduced Bernadette and Howard, who ended up getting married as well. They are the ones who could be ...