“The Big Bang Theory” ended its long, successful run with 18 million people tuning in for its series finale on Thursday night, according to Nielsen.

The CBS ends it's run with a 'big bang' as it will finish the season as the most-viewed entertainment show in all of network television. The series — created by Chuck Lorre and starring Jim Parsons, Kaley Cuoco and Johnny Galecki — finished with 279 episodes, the most of any multicamera situational comedy in television history. It surpassed “Cheers,” which had 275 episodes.

The show is currently in second place behind “This Is Us” and “The Masked Singer” in the key rating point among adults under the age of 50, but it’s possible that when a week’s worth of delayed viewing is included, the final episode of “Big Bang” could push it to first place among non-sports programs. (NBC’s “Sunday Night Football” is tops.)

“Big Bang” is not the only finale this weekend: “Game of Thrones” will end its eight-year run on Sunday, and it is likely to set new ratings records.