The Big Bang Theory: Season 3, Episode 22

The Staircase Implementation (17 May 2010)

TV Episode  -   -  Comedy
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Ratings: 9.0/10 from 1,330 users  
Reviews: 3 user | 2 critic

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



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Episode complete credited cast:
Mrs. Wolowitz (voice)
Ajgie Kirkland ...
Edward Lieberman ...
Announcer (voice) (as Ed Lieberman)


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








Release Date:

17 May 2010 (USA)  »

Company Credits

Show detailed on  »

Technical Specs


Sound Mix:


Aspect Ratio:

16 : 9
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Did You Know?


Sheldon mentions the (then new) TV series Firefly (2002) and predicts that it will go on for years. This is a joke, as 'Firefly' was infamously canceled after just one season (although it was followed up by the full-length movie Serenity (2005)). See more »


This episode begins in 2010 and flashes back 7 years to 2003. In 2003 Sheldon makes a reference to Joss Whedon's show "Firefly" stating that "Friday nights are reserved for Firefly, it will be on forever." In fact, Firefly was canceled in December 2002. See more »


Sheldon Cooper: Yes?
Leonard: I'm Leonard Hofstadter. I called you about the apartment and you said to come by...
Sheldon Cooper: I know what I said. I know what you said. I know what my mother said on March 5, 1992. What is the sixth noble gas?
Leonard: What?
Sheldon Cooper: You said you were a scientist. What is the sixth noble gas?
Leonard: Radon?
Sheldon Cooper: Are you asking me or telling me?
Leonard: Telling you?
[Sheldon glares at him]
Leonard: Telling you.
See more »


References Star Trek: The Next Generation (1987) See more »


Big Bang Theory Theme
Composed and Performed by Barenaked Ladies
See more »

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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.

12 of 14 people found this review helpful.  Was this review helpful to you?

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