CBS Entertainment and Warner Bros. Television announced that "The Big Bang Theory" will be renewed for a two-year contract and be back for Season 11 and 12. The agreement will come along with the spinoff prequel series, the "Young Sheldon" that tells a story about a young boy Sheldon Cooper, a boy genius that grows up in East Texas.

According to Deadline, the renewals is being announced with no deals for "The Big Bang Theory" co-stars Melissa Rauch and Mayim Bialik, which the contracts ended up at the end of Season 10. While the original cast members Jim Parsons, Johnny Galecki, Kaley Cuoco, Simon Helberg, and Kumal Nayyar will come into the show as they signed a new two-year contract to continue.

Rauch and Bialik has been both introduced as a guest on "The Big Bang Theory" Season 3 and became a regular cast member in Season 4, and had been earn for about $175,000 per episode, while the original cast will earn around $1 million per episode. However, for the next two seasons, the original five cast members will earn for about $900,000 per episode.

Independent added that those cast payments were possible because "The Big Bang Theory" Season 9 was watched by 19.36 million viewers, in an age range of 18-49, which the most important statistics for the advertisers. In addition, "The Big Bang Theory" is the most watched comedy series since 2010-2011, and still having an elusive live audience in an average of more than 14 million for an original telecast.

"The Big Bang Theory" has been generated for more than $1 billion for Warner Bros. TV in syndication revenue. The insufficiency of big network sitcoms might help the show continue to generate a strong profit. "The Big Bang Theory" has won four Emmy Awards to star Jim Parsons, and it has been used to launch a few CBS series. Meanwhile, the spin-off prequel will be expected to launch later this year where the first episode is directed by Jon Favreau.