CBS sitcom The Big Bang Theory could get renewed for two more seasons if Warner Bros. TV can reach an agreement with the cast over salaries for seasons 11 and 12.

While the original five stars earn $1 million an episode, actresses Mayim Bialik and Melissa Rauch who joined the show in season three, only get paid $200,000 per episode.

Now, according to Variety, the original five are offering to take a small pay cut of $100,000 per episode each so that the money will be there to give Bialik and Rauch $450,000 each per episode.

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Close cast: Kunal Nayyar, Jim Parsons, Simon Helberg, Johnny Galecki and Kaley Cuoco who each earn $1 million an episode have volunteered to take a pay cut so that co-stars Mayim Bialik and Melissa Rauch, who are paid $200,000 an episode, can get a raise

Pictured: Bernadette (Melissa Rauch), Stuart (Kevin Sussman), Sheldon Cooper (Jim Parsons), Amy Farrah Fowler (Mayim Bialik), Leonard Hofstadter (Johnny Galecki), Penny (Kaley Cuoco) and Rajesh Koothrappali (Kunal Nayyar)

Jim Parsons, Johnny Galecki, Kaley Cuoco, Kunal Nayyar and Simon Helberg have all agreed to the plan, the trade reported Tuesday, on the condition the savings are distributed between their two lesser paid co-stars.

It is not yet clear if Bialik and Rauch will still hold out for full pay parity for what would likely be the final two seasons of the hit sitcom.

Renewal talks began late in 2016, Variety said, but the two actresses are just starting their negotiations in earnest this week.

Seeking pay parity: Emmy nominated Bialik joined the sitcom in season three and plays Amy Farrah Fowler, the girlfriend of Parsons’s character Sheldon Cooper

Raise: Rauch, whose character had a baby with Helberg's character, came on board the same time as Bialik

Sweet: Now, according to Variety , the original five are offering to take a small pay cut of $100,000 per episode each so that the money will be there to give Bialik and Rauch $450,000 each per episode

Bialik plays Amy Farrah Fowler, the girlfriend of Jim Parsons’s character Sheldon Cooper.

Rauch’s character Bernadette Rostenkowski had a baby at the start of the current 10th season with Howard Wolowitz, played by Simon Helberg.

The Big Bang Theory has grossed more than $1 billion for Warner Bros. since going into syndication.

At the MCM Comic Con in London last May, star Kunal Nayyar hinted that season 10 could be the last for the comedy, which began in 2007.

He said: 'Look, next season, as it stands on our contract, could be the last season of Big Bang Theory.

'To be completely honest, I know people are gonna want to know what happens after season 10. I don't know what's going to happen.'

Kaley added: ‘I think it’s a given that we want to be here. That’s the overall consensus. It might be a sticky road, but if I have anything to do with it, we’d be here for much longer. That’s the goal.’

Last summer, showrunner Steve Malero indicated that the end was in sight for the show.

He said: 'I think so. I can’t speak to the future or on behalf of the cast or where we’ll be then but it’s certainly possible that it could go past that.

‘The reality is that maybe season 10 is the ending point.’

Yet a few months later, he teased to TV Line: '

‘I’ll keep pushing forward and, as we learn more, we’ll adjust if necessary. If everything keeps going the way it’s been going, absolutely [I’m up for more].’

Kunal said on This Morning in June last year: 'All of us on the show realise how lucky we are on the show and we treasure it. We’re not sure if there will be another show like this, we know it is special.’

Making money: Kaley is one of the main cast members who earns $1 million per episode

Lagging behind: But Melissa (left) and Mayim earn far less than their well-known counterparts

The show recently scooped their eighth People's Choice Award, and after winning Favorite Network TV Comedy, Kaley - who plays Penny - took to the stage to thank the fans.

She began: 'Thank you guys so much! It means the world to us that after 10 seasons that you still vote for us.

'It is a dream to go to work every day. Thank you to the fans for voting for us, number one, we love you so, so much!'

Popular: CBS sitcom The Big Bang Theory won Favorite Network TV Comedy at the 2017 People's Choice Awards and Warner Bros. TV is negotiating renewal for two more seasons

Doing it well: The cast and crew accepted the Favorite Network TV Comedy award onstage during the People's Choice Awards in January 2017

Not too shabby: They also picked up one of the coveted gongs in 2016

...And again: The nabbed the Fave TV Show award the year before

A popular choice: They also accepted the Favorite Network TV Comedy award onstage at The 40th Annual People's Choice Awards in 2014

You'd better believe it! They picked up the same gong in 2013, too!