three of the main five stars of the big bang theory have reached new agreements with warner bro's tv they are Jonny Galecki , Kaley Cuoco and Jim parsons they all did there negoations together and are expected to earn $1 million dollers an episode. The show which has been picked up through to it's tenth season had begun production on season 8 when the stars contract's ran out stars simon helburg and Kunal Nayyar are still under negotiation and are doing there negotiations seperatly meanwhile co-stars Mayim Bialik and Melissa Rauch had already worked out there deals to return to the hit sitcom.