The Big Bang Theory (2007–2019)
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The Large Hadron Collision 

When Leonard is offered a trip to Switzerland on Valentine's Day to visit the CERN laboratory, Sheldon uses any and all means to be his guest instead of Penny.

Director:

Mark Cendrowski

Writers:

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

Episode complete credited cast:
Johnny Galecki ... Leonard Hofstadter
Jim Parsons ... Sheldon Cooper
Kaley Cuoco ... Penny
Simon Helberg ... Howard Wolowitz
Kunal Nayyar ... Raj Koothrappali
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Storyline

Valentine's Day is approaching. Leonard thinks he's hit some good luck in that he has been asked to attend a conference and view the Hadron super collider in Switzerland during Valentine's. He's allowed to bring a guest with him which he has chosen to be Penny. There, the two can have a romantic first Valentine's Day together. This decision doesn't sit well with Sheldon who has always dreamed of seeing the collider. Sheldon does whatever he can to make Leonard change his mind, including reminding him of their documented roommate agreement. But the harder Sheldon tries to convince Leonard to change his mind, the more Leonard seems to resist. But outside forces may end up deciding for Leonard who will accompany him to Switzerland. Written by Huggo

Plot Summary | Plot Synopsis

Genres:

Comedy | Romance

Certificate:

TV-PG | See all certifications »
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Details

Country:

USA

Language:

English | Swiss German

Release Date:

8 February 2010 (USA) See more »

Company Credits

Show more on IMDbPro »

Technical Specs

Runtime:

Sound Mix:

Dolby Digital

Color:

Color

Aspect Ratio:

16:9
See full technical specs »
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Did You Know?

Trivia

The title refers to Sheldon, Leonard and Penny butting heads over who gets to go to Switzerland with Leonard to see the Large Hadron Collider at CERN. See more »

Goofs

As Leonard and Raj are in Switzerland to visit CERN it wouldn't really make sense for their hotel room to have a view of the Matterhorn. CERN is in the suburbs of Geneva, a three hour drive from any hotel with a view of The Matterhon. See more »

Quotes

[first lines]
Howard Wolowitz: [on cellphone] ... Sweetie. Uh, listen, I need to go, but I'll see you tonight? Bye-bye. Bye-bye. B- No, *you* hang up first. Hello?
Raj Koothrappali: Dude, I'm glad you finally got a girlfriend, but do you *have* to do that lovey-dovey stuff in front of those of us who don't?
Sheldon Cooper: Actually, he might have to. There's an economic concept known as a positional good, in which an object is only valued by the possessor because it's not possessed by others. The term was coined in 1976 by economist Fred Hirsch ...
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Crazy Credits

CHUCK LORRE PRODUCTIONS, #277 Belarus is a small, land-locked country next door to Russia, Ukraine, Latvia, Lithuania and Poland. According to Wikipedia, one of its major exports is cattle by-products. Which begs the question, what horrible shape are the cattle in, if all they're good for is felt hats and wallpaper paste? But Belarus does have a bustling TV production industry. One of their most recent hits is a sitcom about four nerdy scientists who live next door to a beautiful blonde waitress. The characters are named Sheldon, Leo, Hovard, Raj and Natasha, and the show is entitled, The Theorists. Each episode begins with a rapid-fire montage of images which takes us from the dawn of time to the present moment. Keeping with that theme, the montage is scored with what is probably the worst piece of recorded pop music since the dawn of time. And finally, each episode appears to be a Russian translation of a Big Bang Theory episode. When we brought this to the attention of the Warner Brothers legal department, we were told that it's next to impossible to sue for copyright infringement in Belarus because the TV production company that is ripping us off is owned and operated by the government of Belarus. Having no other recourse, I'm hoping that this vanity card will be read by the fine folks making The Theorists, and, wracked with guilt, they break down and send us some felt hats. The Kyrgyzstan version of Dharma & Greg already sent me some wallpaper paste. See more »

Connections

References Dharma & Greg (1997) See more »

Soundtracks

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