The first episode of The Big Bang Theory aired on CBS, introducing the world to the lives of physicists Leonard and Sheldon and their friends.
Jim Parsons, who plays Sheldon Cooper, won his first Primetime Emmy Award for Outstanding Lead Actor in a Comedy Series for his role on The Big Bang Theory.
The show hit a major milestone by airing its 200th episode, showcasing its longevity and success.
CBS announced that the show would end after its 12th season, marking the beginning of the series conclusion phase.
The series finale of The Big Bang Theory aired on CBS, ending the beloved sitcom after 12 seasons.