The Big Bang Theory (2007–2019)
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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.


Mark Cendrowski


Chuck Lorre (created by), Bill Prady (created by) | 9 more credits »




Episode complete credited cast:
Johnny Galecki ... Leonard Hofstadter
Jim Parsons ... Sheldon Cooper
Kaley Cuoco ... Penny (as Kaley Cuoco-Sweeting)
Simon Helberg ... Howard Wolowitz
Kunal Nayyar ... Raj Koothrappali
Mayim Bialik ... Amy Farrah Fowler
Melissa Rauch ... Bernadette Rostenkowski
Bob Newhart ... Arthur Jeffries


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) See more »

Company Credits

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Technical Specs


Sound Mix:




Aspect Ratio:

16:9 HD
See full technical specs »

Did You Know?


Bernadette mentions watching the police drama Jake and the Fatman while growing up. Casey Sanders, who plays Bernadette's father, was a recurring character on the first season of that show. See more »


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


Sheldon Cooper: Arthur. I thought you were dead.
Arthur Jeffries: I am. It's fantastic. I mean this is the longest I've gone without running into a men's room in years.
Sheldon Cooper: Why are you here?
Arthur Jeffries: I don't know. I was hoping of going to haunt my ex-wife.
Sheldon Cooper: I know why. You've come to me because you're my Obi Wan.
Arthur Jeffries: I'm not... I'm not familiar with that Is that an internet?
Sheldon CooperArthur Jeffries: Wow. You're dead so I'm gonna let that slide. Obi Wan Knobi is a character from Star Wars. After his physical demise he comes to Luke Skywalker as his mentor in spirit form...
Arthur Jeffries:
Sheldon Cooper:
Arthur Jeffries: [...]
See more »

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 Toy Story 3 (2010) See more »


History of Everything (Instrumental version)
Written by Barenaked Ladies
Performed by Barenaked Ladies
[Instrumental version of series theme song played over the closing credits]
See more »

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