VIDEO : 'Big Bang Theory' Series Finale Saw Highest Rating In Three Years

CBS has aired the last-ever episode of the long-running sitcom "The Big Bang Theory." The hour-long series provided fans with an opportunity to bid farewell to their beloved characters after 280 episodes on air. According to comicbook.com, the series finale was the show's highest rated episode in three years. A whopping 18 million people reportedly tuned in to watch the finale.