To mark its 100th episode, The Big Bang Theory is trying a first — and it has Kaley Cuoco slightly nervous.
"The episode is a little different from what we've done. It plays a misguided trick on the audience until the end, so people might be confused, but it's very well done," she tells TVGuide.com. "I hope people like it! The audience that we shot in front of loved it, so that's a good start."
"It's one of those what-ifs," Cuoco says. "We see what they're both thinking a little bit and what everyone's feeling. They're both kinda like, 'If we do go on this date, what will happen?' They both build it up in their minds and then you find out in the end what's really going on, but there are definitely a lot of questions throughout. It was extremely smart and well-written and witty. It's a slightly different angle, and after five and a half seasons, you have to take some chances."Kunal Nayyar) that she regretted breaking up with Leonard, would it be fair to assume that she wants to start dating again? "I think even if she wants to, there are a lot of things to [consider] and it's definitely not easy for them to just start dating again," Cuoco says. "Their friendship is finally going well. I think what people can expect is that they're a little older now, slightly more mature, so there won't be some crazy, horrible drama. They each understand where the other stands."Still, Cuoco — who does not know the writers' plans for Leonard and Penny — believes that it will "take awhile" for the duo to work everything out and truly reunite. And when they do, she hopes it's for good.Chuck Lorre, Bill Prady and Steve Molaro re-watched the pilot before writing the 100th episode, but Cuoco made sure to steer clear of it."Oh, no. I've seen that thing way too many times!" she says. "It's a great pilot — I'm so proud of it and I love that [this episode] takes us back to it— but I can remember every outfit I wore in that. I don't need to see that again for a while! Maybe by the 200th!"The Big Bang Theory airs Thursdays at 8/7c on CBS. Watch a clip from the 100th episode below.