Final Season

When did The Big Bang Theory end?

 The series finale aired Thursday, May 16, 2019.

In March 2019, CBS announced that The Big Bang Theory would conclude with an hour-long series finale on Thursday, May 16.

CBS and Warner Bros. announced on August 22, 2018 that The Big Bang Theory would end with its twelfth season.

When did the final season premiere?

 Monday, September 24, 2018

The Big Bang Theory's final season premiered with a special broadcast on Monday, September 24, 2018 and returned to its regular time period on Thursday, September 27, 2018.