The Big Bang Theory (2007– )
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The Staircase Implementation 

Leonard tells Penny about how he and Sheldon became roommates and what happened to the elevator.



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Episode complete credited cast:
Debbie Wolowitz (voice)
Announcer (voice)


After Leonard and Sheldon have a heated argument about what Sheldon sees as Leonard making a major breach in the roommate agreement, Leonard takes refuge at Penny's apartment. Despite the seriousness of the argument, Leonard assures Penny that Sheldon was much more difficult to live with when Leonard first moved in. Leonard recounts to her his first meeting with Sheldon seven years earlier when Leonard answered Sheldon's advertisement looking for a new roommate. He also recounts Howard and Raj's first encounters with Sheldon, what happened to the now broken elevator which was working when Leonard first moved in, and why Leonard decided to stay despite Sheldon being such a difficult and unusual roommate. Written by Huggo

Plot Summary | Plot Synopsis


Comedy | Romance


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Release Date:

17 May 2010 (USA)  »

Company Credits

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Technical Specs


Sound Mix:


Aspect Ratio:

16 : 9
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Did You Know?


The references to B-Stoff and C-Stoff on Sheldon's white board represent two types of rocket fuel used by the Germans during World War II. They were used in the the V-2 and Me-163 (with T-stoff) respectively. See more »


When Sheldon and Leonard are first going over the roommate agreement, they finish up the TV and movies section and then move onto the miscellaneous section, section 9, which would make the TV and movies section, section 9. Then, later, when Sheldon comes into Leonard's room when Joyce Kim, Leonard is in breach of Section 8, Visitors; Subsection C, Females; Paragraph 4, Coitus, but Visitors can't be section 8 as TV is. See more »


Sheldon Cooper: If either of us invent time travel, we agree that our first stop will be this meeting five seconds from now.
[Looks around]
Sheldon Cooper: Well, that was disappointing.
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Crazy Credits

CHUCK LORRE PRODUCTIONS, #287 CENSORED!!! Apparently, it's okay to show brutal violence in graphic, vomit- your-Jenny Craig dinner-up-into-your-mouth detail on a forensic cop show, but it's unacceptable to write about it with a little whimsy. As always, you can read the offending material on my web site, Frankly, I think you'll be disappointed. See more »


Referenced in The Big Bang Theory: The Apology Insufficiency (2010) See more »


Big Bang Theory Theme
Composed and Performed by Barenaked Ladies
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User Reviews

An episode I've been waiting for since the beginning!

Ever since the start of the show, the big question on everyone's mind is "what happened to the elevator?" Finally, in a flashback episode to reveal how everyone met -which are always fun- it is shown why they must walk three flights of stairs.

From start to finish, this episode is a laugh riot and makes your stomach hurt from all the laughing. It's creative and interesting to learn how Leonard comes to live with the freak Sheldon. It's interesting how Sheldon is worse before Leonard arrives and it's great to see that Howard and Raj have always been lovable and quirky.

It would have been interesting to watch the show starting back in 2002 and venturing all the way until Penny moved in and such, but it's a great show and seems to improve with each episode.

18 of 21 people found this review helpful.  Was this review helpful to you?

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