"The Big Bang Theory" has been on the air since 2007. © Warner Bros. Television

“The Big Bang Theory” has been on the air since 2007.
© Warner Bros. Television

(Relaxnews) – CBS announced that it has ordered three more seasons of the hit comedy, to be aired between now and spring 2017.

Currently the most watched comedy series in the US, “The Big Bang Theory” has been renewed for its eighth, ninth and tenth seasons.

CBS has every reason to make a long-term commitment to the immensely popular show, which has attracted an average 19.79 million viewers per week since the start of the current season in September. The show even hit a new record audience this season, when 20.44 million viewers tuned in on September 26.

Now producers are faced with the task of convincing the cast to sign on for three additional seasons of the series, which follows a group of geeky friends in Pasadena. Warner Bros TV has just entered talks with Jim Parsons (Sheldon), Johnny Galecki (Leonard), Kaley Cuoco (Penny), Simon Helberg (Howard), Kunal Nayyar (Raj), Melissa Rauch (Bernadette) and Mayim Bialik (Amy).

Since launching on CBS in 2007, “The Big Bang Theory” has continued to grow its fan base, becoming the second most-watched show in the US last season, behind “NCIS.”