The Big Bang Theory

Season 7 Episode 22

The Proton Transmogrification

45
Aired Thursday 8:00 PM May 01, 2014 on CBS
8.6
out of 10
User Rating
128 votes

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Episode Summary

EDIT

Professor Proton pays Sheldon a visit after Sheldon suffers a tragic loss. Meanwhile, Leonard can't help competing with Penny when they reach a milestone in their relationship, and Amy and Bernadette treat the guys by making them a Star Wars Day gift.

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Bob Newhart

Bob Newhart

Arthur Jefferies / Professor Proton

Special Guest Star

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