Since The Big Bang Theory had its own issues when it came to stereotypical characters, I was surprised to find out the show called out The Simpsons for the same issue way back in 2007. The Big Bang Theory’s cast of characters were reliably hilarious, but they weren’t without their issues. For most of the show’s 12-season run, Kaley Cuoco’s Penny was notable for being a rare sitcom heroine who had no interest in having children. This was a welcome change of pace for the genre.