The Big Bang Theory tried to tell you: it will air on a new night this fall, but will be comprised of the same theory.

Now, perhaps to prove this point, the show has announced that Katee Sackhoff will appear again on the upcoming season of the CBS sitcom, reprising her role as... herself. Or at least a version of herself about whom Wolowitz fantasizes.

As first reported by Maureen Ryan of TV Squad, Melissa Rauch will also return on this installment as Wolowitz's ex-girlfriend, Bernadette.

Teased Sackhoff about her return: "He's struggling with his feelings about Bernadette and them breaking up, and in pops Katee Sackhoff again. I can probably say [the scene] won't be in the bathtub. I don't know for sure... I can't imagine them doing the same thing twice, but you never know."

Hey, if something is not broken - and is beautiful - why fix it?!?

The Big Bang Theory premieres its new season on September 23.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.