WATCH: ‘Big Bang Theory’ Cast Goes To ‘The Next Generation’ On Thursday’s Episode

On Thursday’s episode of The Big Bang Theory, entitled “The Bakersfield Expedition,” Sheldon, Leonard, Howard and Raj attend the Bakersfield Comic-Con dressed as characters from Star Trek: The Next Generation.

While the guys are at the con, Penny, Bernadette and Amy venture to the comic book shop.

This isn’t the first time Star Trek has shown it’s impact on the CBS hit comedy. Former TNG stars LeVar Burton, Brent Spiner and Wil Wheaton have all appeared in previous episodes. Last season, Leonard Nimoy lent his voice to an episode.

Check out a preview of Thursday’s episode “The Bakersfield Expedition” below.

The Big Bang Theory airs Thursdays on CBS at 8/7c.

Photos: CBS