When CBS announced their 2017-2018 fall Schedule, CBS chief executive Les Moonves announced that Seasons 11 and 12 would not be the last seasons of the show. This means that there will possibly be at least a thirteenth season of The Big Bang Theory. The season, if confirmed, could premiere in September 2019 and end in May 2020. However, the season has yet to confirmed by either CBS or Chuck Lorre and Bill Prady.