The Big Bang Theory (2007– )
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The Proton Transmogrification 

As the gang celebrate Star Wars Day, Sheldon has difficulty dealing with the recent death of Arthur "Professor Proton" Jeffries.



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Episode complete credited cast:
Penny (as Kaley Cuoco-Sweeting)


The guys are organizing Star Wars: Episode IV - A New Hope (1977) day, which is on May the 4th, the date so chosen because..., and as such the date cannot be changed. They run into a conundrum when they learn that Arthur Jeffries, Leonard and Sheldon's friend and childhood idol as "Professor Proton", has just passed away, his funeral service to be held that day. While Penny plans to accompany Leonard to the funeral, Sheldon plans to partake in Star Wars day with Howard and Raj, since he believes mourning is a wasted emotion, and funerals a superstitious ritual. While Amy and Bernadette are helping with the Star Wars preparations, Sheldon, Howard and Raj start watching the marathon of six movies. But Arthur's death may be hitting Sheldon harder than he realizes, as witnessed by the break he takes from watching the movies. At the funeral, Penny makes an admission about funerals in general, while Leonard contemplates his mortality. Written by Huggo

Plot Summary | Plot Synopsis


Comedy | Romance


TV-14 | See all certifications »




Release Date:

1 May 2014 (USA)  »

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Sound Mix:


Aspect Ratio:

16:9 HD
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Did You Know?


Title Reference: Professor Proton passes on and "transmogrifies" to a ghost. See more »


You can see the support being retracted before the Deathstar cake rolls off of the table. See more »


Amy Farrah Fowler: Arthur passing away was harder on Sheldon than he's ready to admit. I'm hoping this will cheer him up.
Bernadette Rostenkowski: Me too. Although it might have been thoughtless of us to make a Death Star cake.
Amy Farrah Fowler: No, it combines two of Sheldon's favorite things. Chocolate chips and the ability of destroying a planet at the push of a button.
Bernadette Rostenkowski: Well, anyway, it'll be a nice surprise for the boys. And Howie doesn't think I take his interests seriously, so hopefully this will keep him fooled for a while.
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Crazy Credits


The government of China has decided that "The Big Bang Theory" is not appropriate for viewing. I have to assume there was some sort of formal process involved in this decision. In all likelihood, a gaggle of communists sat in a darkened room and watched a few episodes. I like to think they took notes that were later used to formulate an official document that detailed the corrosive cultural effects caused by the shenanigans of Sheldon, Leonard, Penny, Wolowitz, Koothrappali, Amy and Bernadette. I like to think that during these screenings one of them laughed out loud and was promptly sent to a re-education camp on the outskirts of Urumqi. I like to think one of them was reassured by how often the characters on the show eat Chinese takeout. I like to think there's a Chinese word for shenanigans. Regardless, the whole affair makes me very happy. The overlords of 1.3 billion people are afraid of our sitcom. Exactly what we were going for! See more »


References Walker, Texas Ranger (1993) See more »


Big Bang Theory Theme
Written by The Barenaked Ladies
Performed by The Barenaked Ladies
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