The year-old actress who became a household name thanks to her role as Penny on "The Big Bang Theory" is set to star in her new "The Flight Attendant" series, but the video showing Kaley with Kelly Clarkson on the series' couch was solidly focused on all things "Big Bang. In fact, the video appeared to bring out a confession from Kaley. Namely, that the actress sometimes doesn't even recognize herself when watching old reruns of herself on-screen. You can see the video here. Kaley agreed that the show is basically everywhere, adding that she'd found herself watching it on planes. Kaley admitted that if she's flipping through channels and the show is on, she'll give it a watch, adding that recent episodes are too much, but she'll watch older ones.