Even though Kaley Cuoco has received critical acclaim for her performance as Cassie Bowden in “The Flight Attendant,” she will always be remembered for her role as Penny on “The Big Bang Theory.” During a 2019 interview, Cuoco talked about the relatability of Penny and her most beloved episodes from the hit series.

She said that she was especially fond of Season 2’s "The Bath Item Gift Hypothesis" and Season 7’s "The Scavenger Vortex." The actress explained that she enjoyed "The Scavenger Vortex,” because it involved the whole cast competing in a complicated scavenger hunt.

She then noted that "The Bath Item Gift Hypothesis" marked the first time that Sheldon hugged Penny, which he does after unwrapping a thoughtful Christmas present. The episode showed both Sheldon’s character development and Penny’s persistent kindness to Leonard’s friends.