When The Big Bang Theory premiered in 2007, few could have envisioned how successful the show would go on to become. After twelve seasons and hundreds of episodes, the show ended in 2019. Central to the story was the genius mind of Sheldon Lee Cooper (Jim Parsons) and the character's ability to perfectly blend humor and science. The Big Bang Theory has since gone on to become an Emmy-nominated series, and creator, Chuck Lorre, has recently opened up about why he resisted giving Parsons’ Sheldon a love interest for so long in the series.