(LOS ANGELES) -- CBS' The Big Bang Theory will be celebrating "Star Wars Day" with a special episode timed for the week of May 4.
That holiday, observed by special screenings of the film series, events, and of course, Star Wars fans greeting each other with, "May the Fourth Be with You," will be observed on the sitcom in a May 1 installment called "The Proton Transmogrification."
The Hollywood Reporter notes Lucasfilm reached out to the sitcom to do something for Star Wars Day and advised producers on the construction of a replica of Dagobah, Yoda's swampy home in exile as seen in The Empire Strikes Back.
The episode shadows Luke Skywalker's journey there: Jim Parsons' Sheldon will be summoned to visit by a vision of his former mentor and childhood hero Professor Proton, who will be played again by Emmy winner Bob Newhart.
Showrunner Steve Molaro said Newhart will be a Jedi master, but won't reveal which one -- though Luke's first teacher Obi-Wan Kenobi seems the logical choice.
"Bob is going to be swinging a lightsaber around and they sent us a real one to use," the producer told the trade. "It's an amazing crossover for us."
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