Yes, The Big Bang Theory and Young Sheldon are related to each other, with the latter being the prequel of the sitcom.

Fans didn’t just love Leonard and Penny—they also fell for Howard and ... So why ditch Kenny for Sheldon? The answer isn’t crystal clear, but it’s likely a mix of creative intuition ...

However, with all of his infuriating behavior, his friends —particularly Leonard, Penny, and Amy—suffer Sheldon’s quirks ... such as showing genuine love for Amy or on very rare occasions ...

After playing fan-favorite Penny, Cuoco made an uncredited ... Bialik reunited with Parsons for a guest spot on Young Sheldon after they originally played love interests on The Big Bang Theory.

Five years after CBS’ The Big Bang Theory wrapped its 12-season run, series stars Jim Parsons and Kaley Cuoco (aka Sheldon and Penny) reunited Friday in New York City, where Parsons currently ...