The Big Bang Theory (2007– )
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The Contractual Obligation Implementation 

1:10 | Clip


Airs Tue. Jan. 29, 8:00 PM on TBS

Leonard, Sheldon and Howard give lectures on science to junior high students. The girls ditch work to go to Disneyland. Raj devises a date for Lucy that fixes their social anxiety problems.


Mark Cendrowski


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





Episode complete credited cast:
Johnny Galecki ... Leonard Hofstadter
Jim Parsons ... Sheldon Cooper
Kaley Cuoco ... Penny
Simon Helberg ... Howard Wolowitz
Kunal Nayyar ... Raj Koothrappali
Mayim Bialik ... Amy Farrah Fowler
Melissa Rauch ... Bernadette Rostenkowski
Kate Micucci ... Lucy
Brian Posehn ... Bert Kibbler
Piper Mackenzie Harris ... Girl #1
Diamond White ... Girl #2
Dawson Fletcher ... Justin


The university requires that the guys promote science careers for women. Sheldon feels that they would be too late talking to college students and that they first try it at the middle school level. Howard proposes that they go to his old middle school since he is an astronaut and their favorite alumni. Raj visits with the girls seeking advice for his first date with Lucy. Bernadette suggests Disneyland which is too crowded for the timid Lucy. The girls get all excited about going to Disneyland themselves rather than helping Raj. They call in sick, head to Disneyland and get made up as Disney princesses. Penny wanted to get drunk, ride the rides and throw up. Bernadette is Cinderella, Penny is Sleeping Beauty, and Amy is Snow White. At the middle school, Sheldon talks about Madame Curie who's radium research killed her, Howard doesn't excite them since he didn't fly the spacecraft, and Leonard obsesses over his parents as the scientists who didn't let him follow his dream of being a ... Written by laird-3

Plot Summary | Plot Synopsis


Comedy | Romance


TV-14 | See all certifications »






Release Date:

7 March 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?


Amy again dresses up in a costume as Snow White after Sheldon said that she didn't believe in wearing costumes in "The Justice League Recombination". In "The Launch Acceleration" she dressed up in a Star Trek medical officer's uniform. See more »


When Lucy walks into the library and Raj starts texting, she immediately reaches for her cell phone before Raj indicates that he wishes her to do so. She would have had no idea he was texting her and should not have reached for her cellphone before being requested to. See more »


[first lines]
Leonard Hofstadter: Look, I know you guys don't want to do this but we have no choice, so you can either bitch and whine, or we can just get it over with.
Howard Wolowitz: I got whine.
Sheldon Cooper: I got the 'b' word.
Leonard Hofstadter: Yeah, well, it's in our contract to serve on a university committee, and frankly this is one I believe in. Okay, here we go. 'Encouraging more women to pursue a career in the sciences.'
Howard Wolowitz: C'mon, if I was any good at convincing women to do stuff, I wouldn't have spent so much of my twenties in the shower.
See more »

Crazy Credits


There will be no vanity card this week due to the sequester. Until such time that federal funding is restored for subliminal verbiage, we have no choice but to pull together as a nation and make do with the liminal. Or should I say

Liminal. See more »


References Snow White and the Seven Dwarfs (1937) 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

"The Contractual Obligation Implementation" was another brilliantly hilarious ep of "The Big Bang Theory"
7 March 2013 | by tavmSee all my reviews

In this ep of "The Big Bang Theory": Leonard reluctantly gets Sheldon and Howard to talk to some female middle school students about choosing science and math as career options. Howard uses his celebrity influence (he's an astronaut, remember?) to pick his alma mater. Meanwhile, Raj joins Penny, Amy, and Bernadette for girls night out to talk about where to take Lucy for a date. Disneyland is one of the suggestions but Raj rejects that though that does give the women an idea to play hooky and go themselves. Raj eventually takes Lucy to the library for lunch where they text each other. I'll stop there and just say this was another hilarious ep with some great touching moments concerning Raj and Lucy. So on that note, "The Contractual Obligation Implementation" was another great edition of "The Big Bang Theory".

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