Total Episode Count and Final Season
The Big Bang Theory has 279 episodes across 12 seasons, with the series finale airing on May 16, 2019, according to Warner Bros. Television production records Warner Bros. TV.
The show ran from September 24, 2007, to May 16, 2019, on CBS, making it one of the longest-running multi-camera sitcoms in American television history.
Season Breakdown and Episode Distribution
Seasons 1 through 10 each contained 24 episodes, while Season 11 had 24 episodes and the final Season 12 had 24 episodes as well, totaling 279 episodes across the entire run IMDb episode guide.
The series averaged around 18.5 million viewers for its early seasons, with the finale drawing approximately 18 million viewers, cementing its status as a top-rated CBS sitcom CBS official site.
Where to Watch All Episodes Now
Max (formerly HBO Max) holds the primary streaming rights for The Big Bang Theory, offering all 279 episodes in HD with optional Spanish and French audio tracks Max streaming.
Physical media releases include complete Blu-ray and DVD box sets for all 12 seasons, available from Warner Bros. Home Entertainment, with bonus features and unaired footage included in the complete collection sets Warner Bros. Shop.