There's a pretty famous thing on "The Big Bang Theory" regarding Penny's last name — which is to say, she doesn't have one.

The Big Bang Theory's unaired pilot didn't include Penny, but the show's original female lead wasn't exactly a good fit, prompting the change.

Do you think it's weird that Penny, a main character on 'The Big Bang Theory' was never given a last name? The reason why is pretty surprising!

Max is officially changing back to HBO Max, and with that change it looks the first priority was to put in a series order for ...

'The Big Bang Theory' deals with a lot of big themes, but finances isn't really one of them. Could Penny have really afforded her apartment? Find out now!

In The Big Bang Theory, Penny is one of the characters that changes the most from the start of show to the end. When we first meet Penny she's just moving in to her new apartment.

‘Big Bang Theory’ Enrolls ‘Alphas’ Actor as Penny’s Classmate (Exclusive) Ryan Cartwright will guest star as Cole in the Nov. 15 episode of the CBS comedy.

Leonard and Penny 2.0 officially kick off Thursday when CBS’ The Big Bang Theory picks up on the heels of its risky 100th episode that saw the pair reunite — but is the couple made for each other?

Kaley Cuoco helped to push Penny's evolution in more ways than one on The Big Bang Theory.

“ The Big Bang Theory ” co-creator Chuck Lorre says Kaley Cuoco ‘s character Penny took a few seasons to fully understand. “It’s a cliched character: the dumb blonde, and we missed it ...

The quiz features 12 quotes; some by Penny whilst others are by other characters from The Big Bang Theory. All you need to do is work out if Penny said it.