Photo Flash: Leonard Nimoy On the Set of THE BIG BANG THEORY

On the March 29th episode of the CBS comedy THE BIG BANG THEORY entitled "The Transporter Malfunction", Penny buys Leonard and Sheldon "Star Trek" collectibles as a thank-you, leading Sheldon to be haunted by Mr. Spock. Meanwhile, Raj decides he has met the "Future Mrs. Koothrappali" after his parents set him up on a date. "Star Trek" legend Leonard Nimoy voices Mr. Spock on the episode airing Thursday, March 29 (8:00-8:31 PM, ET/PT) on the CBS Television Network.

On THE BIG BANG THEORY, Leonard and Sheldon are brilliant physicists - wizards in the laboratory, but socially inept outside of it. Enter beautiful, free-spirited neighbor, Penny, who aims to teach them a thing or two about life. While Leonard spends his days looking for love, Sheldon is quite content video-chatting with platonic partner Amy Farrah Fowler, or playing Star Trek 3D Chess with their ever-expanding universe of friends, including fellow scientists Koothrappali and Wolowitz, and Wolowitz' fiancée, the adorable microbiologist, Bernadette.

View photos of Leonard Nimoy on the set of CBS's THE BIG BANG THEORY below!

Photo credit: Monty Brinton/CBS