The Big Bang Theory (2007– )
3 user 2 critic

The Proton Resurgence 

Bernadette and Howard offer to watch Raj's dog and live to regret it. Leonard and Sheldon hire their favorite childhood star to make an appearance.


Mark Cendrowski


Chuck Lorre (created by), Bill Prady (created by) | 7 more credits »


Airs Tue. Jan. 29, 10:00 PM on TBS





Episode complete credited cast:
Johnny Galecki ... Leonard Hofstadter
Jim Parsons ... Sheldon Cooper
Kaley Cuoco ... Penny
Simon Helberg ... Howard Wolowitz
Kunal Nayyar ... Raj Koothrappali
Melissa Rauch ... Bernadette Rostenkowski
Bob Newhart ... Arthur Jeffries
Troy Winbush ... Paramedic


Sheldon has just located his childhood hero, Arthur Jeffries Ph.D., online. He was better known as Professor Proton, host of a children's science show. Both Sheldon and Leonard were faithful viewers when they were children before the show was canceled. Professor Proton is still available for special appearances, so Sheldon decides to hire him for a small gathering at the apartment. When Jeffries arrives and finds only Sheldon, Leonard and Penny, he is confused as he expected a party full of children. But performing his Professor Proton show to the three allows him to open up about the dichotomy between the wants of Arthur Jeffries Ph.D., and the realities of Professor Proton. Meanwhile, Raj asks Howard and Bernadette to babysit his pampered dog Cinnamon for him. This babysitting experience demonstrates to Howard and Bernadette whether they are ready to graduate to having a real live baby. Written by Huggo

Plot Summary | Plot Synopsis


Comedy | Romance


TV-PG | See all certifications »






Release Date:

2 May 2013 (USA) See more »

Company Credits

Show more on IMDbPro »

Technical Specs


Sound Mix:




Aspect Ratio:

16:9 HD
See full technical specs »

Did You Know?


This is the final episode to not feature Mayim Bialik. See more »


When Sheldon sings "Soft Kitty" to the Professor, he smiles. It then cuts to a side view of the Professor and he is not smiling. See more »


[first lines]
Leonard Hofstadter: The interface is pretty simple. You put your horizontal X coordinate here, vertical Y coordinate here, and you're happy with those you press this button.
Penny: Got it.
[the toy missile launcher swivels]
Sheldon Cooper: Leonard, you'll never guess who I just found on li-
[he is hit in the head by a toy missile]
Sheldon Cooper: H-Hey!
Leonard Hofstadter: Nice shot.
Penny: Uh, his giant head did most of the work.
Sheldon Cooper: Very mature! You're lucky I'm out of silly string.
See more »

Crazy Credits


On what is perhaps the most bewildering experience of my life, I have, for the most part, chosen to remain silent. There have been times when it felt like I was actually swallowing my thoughts. But this comes at a price. Suppressed cogitation tends to gestate. It grows into something else. Self-immolating bitterness is one of the outcomes I've tried to avoid. That has tumor written all over it. Alternatively, these thoughts could morph into something beautiful; Superman's diamond wrought from a lump of coal comes to mind. But one thing's for sure, whatever the hell is growing inside me has to eventually be pushed out. Once it arrives, I'll leave it to others to decide if its metaphorical journey into daylight was through my metaphorical vaginal canal or my metaphorical ass. See more »


Featured in The 65th Primetime Emmy Awards (2013) 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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User Reviews

Best episode yet!
10 May 2013 | by rpg0060See all my reviews

I'm a huge fan and have been since the beginning... and I understand there's been a LOT of GREAT episodes (any episode with Leonard's mom, Bath Gift Item Hypothesis, Pants Alternative, etc), but for anyone who loves dry humor this is the best episode yet! I liked the earlier seasons much better than the recent seasons, but this is the exception! Bob Newhart as Professor Proton is absolutely hysterical...while not looking like he's even trying. Penny's enthusiasm and Sheldon's crazy work as perfect foils to Professor Proton. My friends and I have been quoting the episode every day for the last week... I still laugh thinking about it! Phenomenal acting job. I hope he comes back again for another guest appearance!

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