'The Big Bang Theory' boss expects the show to end with season

"The Big Bang Theory" co-creator Chuck Lorre doesn't think the Emmy-winning sitcom will last longer than its next two guaranteed seasons.
"We never really figured to be at year 11, let alone what's going to happen after 12.
"One could easily presume that would be the end of the series, but I'm just amazed we're here," co-creator Chuck Lorre told The Hollywood Reporter after presenting spin-off series "Young Sheldon" at the Television Critics Association's summer press tour.
Some assumed that the 10th season finale this past spring would be the swansong for the CBS comedy, but a deal was struck with the cast at the last minute to keep "The Big Bang Theory" on air through 2019.

CBS is already in the process of expanding "The Big Bang Theory" brand with prequel "Young Sheldon", in which Jim Parsons narrates the early years of the popular character.