The Big Bang Theory” is one of CBS’s top-rated shows which debuted in September 2007, created by Chuck Lorre and Bill Prady. Fans of the show are delighted to know that it has been renewed for two more seasons which means it will run until 2019.

Audiences will be able to watch more of their favorite nerds and be entertained on a weekly basis.

With that said, here are a few interesting facts about “The Big Bang Theory” that you may not know about.

Some of the cast members agreed to a lower pay so others could get a raise

We all know that if a TV show is this popular means that the cast is being well-compensated in terms of salary.

In fact, the show’s 2014 season was delayed due to re-negotiations between the cast and the studio.

After everything has been said and done, the show’s three main characters Jim Parsons, Johnny Galecki, and Kaley Cuoco, were able to reach an agreement with the studio and would be paid one million dollars each per episode.

Simon Helberg and Kunal Nayyar earn $750,000 each per episode after they re-negotiated their contracts.

Meanwhile, Melissa Rauch and Mayim Bialik were only paid $200,000 each per episode. However, that will change for the show’s 11th and 12th seasons as the three main characters agreed to a pay cut of $900,000 each and the extra money will go to Rauch and Bialik, earning them a raise of $450,000 each per episode.

Johnny Galecki and Kaley Cuoco secretly dated

Galecki and Cuoco dated for two years from 2007 to 2009. Interestingly enough, the then-couple were able to keep their relationship a secret from the media and from the cast and crew of the show. Ironically, it was their relationship’s secrecy that led to their eventual break-up as the couple constantly denied the intimacy whenever people asked them about it.

Howard and Bernadette’s baby will no longer be seen as a tribute to Carol Ann Susi

Carol Ann Susi played an unseen character in “The Big Bang Theory” as Howard’s mother. She can only be heard screaming off-screen, but sadly, she passed away in 2014 along with her character in the show.

As a tribute to Susi, Halley, Howard and Bernadette’s newborn baby introduced in the middle of the 10th season, will no longer appear on-screen and instead will only be heard, just like her character’s grandmother.

'The Big Bang Theory' spin-off is being developed

Like any other popular TV show, “Big Bang” will also have a spin-off called “Young Sheldon.”

The spin-off will focus on Sheldon Cooper when he was still a child living in Texas, and Jim Parsons will reportedly narrate each episode. “Young Sheldon” will be entirely different from the original show; it will be a single-camera show with no laugh tracks, much like “Modern Family” or “30 Rock.”