Chuck Lorre, co-creator of The Big Bang Theory, has spoken about his concerns that the show may become stale.

Speaking to Deadline, Lorre said, "You don’t want to repeat yourself. After 100-some-odd episodes, redundancy is looming."

The sixth season of the show will premiere in the US in September and a seventh season has already been commissioned. While the show has seen huge success, co-creator Bill Prady reassures that this does not put much more pressure on the writers, "That has nothing to do with what you do every day, just to try and find a good story and execute it."

Prady continued, "There’s actually a cognitive disconnect between the impact that the show has culturally, on television, and all that stuff, and your day-to-day experience."

President of CBS Entertainment, Nina Tassler spoke about the future of the show saying, "We're proud to partner with Warner Bros on another highly successful, long-running comedy."

She has full confidence in the duo of Lorre and Prady to keep the show as funny as ever, "From ratings to critical acclaim to pop culture buzz, it's struck a chord on all levels. The creative genius of Chuck Lorre and Bill Prady and the on-camera talents of an amazing young ensemble have created a comedy that will entertain viewers for a long time."

Kaley Cuoco, who plays Penny on the show, told Digital Spy that she would love to see the show reach the ten year mark, "I'd like to reach the big ten - I think that would be amazing. If people want to keep watching us, I can see no reason why it wouldn't happen."

With at least two more seasons to look forward to, we'll get our fix of Sheldon and co. and hopefully a few more seasons on top of that if all goes well!