The Big Bang Theory was one of the most popular sitcoms of the 2000s, so it’s no wonder fans were thrilled when a prequel series about its lead character debuted in 2017. Jim Parsons won four Emmys ...

Across seven seasons, Young Sheldon evolved into more than just a prequel and its success reinforced the appeal of spin-offs.

Sheldon Cooper has many quirks on The Big Bang Theory, including knocking thrice on somebody's door. Here's the reason why he ...