For the May 1 episode of The Big Bang Theory Bob Newhart returns as Professor Proton in the Star Wars-themed episode. The episode's broadcast coincides with the annual May 4 celebration of Star Wars. The day plays on the series' "May the Force be with you", with fans instead saying "May the fourth be with you".
In TheProton Transmogrification – Professor Proton helps Sheldon cope with grief, while Leonard turns a relationship milestone into a competition with Penny. Meanwhile, Amy and Bernadette make a “Star Wars Day” gift for the guys.
For the episode (watch it here), the CBS comedy teamed with a group of special effects technicians from Lucasfilm's Industrial Light & Magic to re-create Dagobah -- the remote world of swamps and forest that served as a refuge for Yoda during his exile -- and provide props for the episode, including a light saber. Newhart will appear as one of the iconic characters from
the Star Wars universe during the episode --Obi Wan Kenobi. Lucasfilm experts consulted on the episode and visited the Big Bang Theory set to oversee the production, with the final touches completed at its San Francisco headquarters.
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