The Big Bang Theory (2007– )
1 user 1 critic

The Lizard-Spock Expansion 

Leonard and Howard's friendship is jeopardised when Leonard steals a girl from Howard.



(created by), (created by) | 3 more credits »

Watch Now

From $1.99 on Amazon Video






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


Howard calls the guys into the Mars rover control room on an emergency. He maneuvered the rover into a crevice, and he needs some help from Sheldon and Raj to maneuver it out. Leonard's task is to get Stephanie, the girl Howard sneaked into the control room, out of the facility, she who doesn't have clearance to be there. On Leonard's task to drive Stephanie home, Stephanie and Leonard hook up. She's a medical doctor with a high libido. Despite Stephanie's assertion that Howard had no chance with her (she went with him since he told her she could drive a car on Mars), Leonard feels guilty, especially in that he wants to see her again. What makes it worse for Leonard is that he knows that Howard still thinks he's dating her. Leonard has to figure out what to do to reconcile dating Stephanie while still being friends with Howard. Written by Huggo

Plot Summary | Plot Synopsis




See all certifications »

Parents Guide:





Release Date:

17 November 2008 (USA)  »

Company Credits

Show detailed on  »

Technical Specs


Sound Mix:


Aspect Ratio:

16 : 9
See  »

Did You Know?


In the season 1 episode, "The Grasshopper Experiment," Leonard lightly scolded Sheldon for having left with Raj's date, saying friends should not do such things. However, he himself practically does the same thing in this episode, the major difference being that he intended to date Stephanie, while Sheldon had no romantic intentions. See more »


In the scene where Howard, Rajnesh, and Sheldon are in the Mars Rover Control Room, the clock behind Howard can be shown to be jumping back and forth between different times, sometimes jumping backwards in time in later scenes. See more »


[first lines]
Sheldon Cooper: Oh look, Saturn 3 is on.
Raj Koothrappali: I don't want to watch Saturn 3; Deep Space 9 is better.
Sheldon Cooper: How is Deep Space 9 better than Saturn 3?
Raj Koothrappali: Simple subtraction will tell you it's six better.
Leonard Hofstadter: Compromise; watch Babylon 5.
Sheldon Cooper: In what sense is that a compromise?
Leonard Hofstadter: Well, five is part way between three an... Never mind.
See more »

Crazy Credits

CHUCK LORRE PRODUCTIONS, #227 Dear George Lucas, May I call you Mr. Lucas? On behalf of the writers of The Big Bang Theory, I would like to thank you for your astounding body of work, which has awakened the child within us and unleashed our dreams. That being said, we hope you don't take offense at our good-natured jest regarding your most recent animated efforts. Yes they were cheap shots, but we can't help but hold you to a higher standard -- a standard of your own making. In closing, we are all looking forward to Indiana Jones 5 - The Curse of the Golden Catheter. Oops, sorry again. Very truly yours, The Writers P.S. To William Shatner, director of Star Trek 5. Go ahead, sue us. See more »


References Star Wars: The Clone Wars (2008) See more »


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

Frequently Asked Questions

This FAQ is empty. Add the first question.

User Reviews

Once again, we have another hilarious episode of "The Big Bang Theory" with The Lizard-Spock Expansion
17 September 2009 | by (Baton Rouge, La.) – See all my reviews

With the third season starting on Monday, I'm watching past episodes of "The Big Bang Theory" from last season that I missed when they first aired in order to play catch up. In this one, as Sheldon and Raj do a "rock-paper-scissors-lizard-Spock" on what to watch, Howard comes in dressed for clubbing (with an eye-patch). Not long after he leaves, he calls his buddies for some help with a Mars Rover he let a woman doctor named Stephanie drive which ended up in a ditch. As Leonard walks her to her car, Raj and Sheldon help Howard. At the car, Stephanie puts the moves on Leonard who doesn't resist at all despite concerns for Howard. When he asks her if Howard had a chance, she replies, "Not with the eye-patch." I'll just stop there and just say what another hilarious episode this was and it was nice to see Howard have another chance to show how hurt he can be despite his bravado. And as Stephanie, Sara Rue fits in as a brief recurring character here. And Jim Parsons as Sheldon is the best thing this series has especially the way he tried to cover up for Leonard when someone asked where he's going. Several more episodes to go before the season premiere...

3 of 7 people found this review helpful.  Was this review helpful to you?

Message Boards

Recent Posts
How can Penny afford to live in her apartment alone? Zebra7
Would you be friends with Sheldon?? MsWill18-526-373909
This post has been deleted TBBT style montaltodalelynn
What would you do for a Series Finale?? MsWill18-526-373909
Emmy Nominations emilion1001
Sheldon drooling over Penny? alicialeeperry
Discuss The Lizard-Spock Expansion (2008) on the IMDb message boards »

Contribute to This Page

Create a character page for: