The Big Bang Theory: Season 1, Episode 10

The Loobenfeld Decay (24 Mar. 2008)

TV Episode  -   -  Comedy
Your rating:
    1 2 3 4 5 6 7 8 9 10 -/10 X  
Ratings: 8.2/10 from 1,316 users  
Reviews: 1 user

Leonard lies to Penny so that he and Sheldon can get out of watching her perform. However, Sheldon believes that the lie has too many loose ends, so he comes up with a new, unnecessarily complex one to replace it.



(created by), (creator), 5 more credits »
0Check in

User Lists

Related lists from IMDb users

a list of 196 titles
created 15 Nov 2011
a list of 6805 titles
created 24 Jul 2012
a list of 32 titles
created 24 Feb 2013
a list of 17 titles
created 10 months ago
list image
a list of 25 titles
created 5 months ago

Related Items

Connect with IMDb

Share this Rating

Title: The Loobenfeld Decay (24 Mar 2008)

The Loobenfeld Decay (24 Mar 2008) on IMDb 8.2/10

Want to share IMDb's rating on your own site? Use the HTML below.

Take The Quiz!

Test your knowledge of The Big Bang Theory.
« Previous Episode | 11 of 163 Episodes | Next Episode »


1 video »


Episode complete credited cast:
Toby Loobenfeld (as D.J. Qualls)


Penny has the role of Mimi in a one-day workshop stage production of Rent, and asks Leonard and Sheldon if they want to go see her perform. Based on hearing Penny sing badly, Leonard and Sheldon decline, with Leonard even lying to her to get out of it. Sheldon is feeling uncomfortable in being a part of Leonard's lie, so he takes proactive measures to get out of that lie. Sheldon's actions don't hurt Penny but rather confuse Leonard. But Sheldon takes his proactive measure to the extreme, utilizing the hidden talents of Toby Loobenfeld, a research assistant in the particle physics lab. Written by Huggo

Plot Summary | Plot Synopsis




See all certifications »




Release Date:

24 March 2008 (USA)  »

Company Credits

Show detailed on  »

Technical Specs


Sound Mix:


Aspect Ratio:

See  »

Did You Know?


In a very uncharacteristic move, the usually germaphobic Sheldon pulls food out of the garbage can. See more »


When Sheldon drops the chicken in the trash, it's sitting on the edge of the can as he lets it go and the bag tips over on its side as it falls in. When he goes back to the trash can to get the chicken, the bag is sitting upright in the can allowing him to just grab the handles and pull the bag out. See more »


[first lines]
Leonard: No, see, the liquid metal terminators were created in the future by Skynet, and Skynet was developed by Miles Dyson but that future no longer exists due to Dyson's death in Terminator 2.
Sheldon Cooper: Okay. Then riddle me this: assuming all the good Terminators were originally evil Terminators created by Skynet but then reprogrammed by the future John Connor, why would Skynet, an artificial computer intelligence, bother to create a petite, hot, 17-year old killer robot?
Leonard: Skynet is kinky? I dunno.
Sheldon Cooper:
See more »

Crazy Credits

CHUCK LORRE PRODUCTIONS, #198 Censored! Well, wouldn't ya' know it. Just two episodes back from the strike and I've already managed to write a vanity card that is completely unacceptable to the good folks at CBS. I wasn't trying to offend. Honest. I just saw an opportunity to poke some proverbial fun, to knosh on the hand that feeds, if you will. They were not amused. If you would like to read my latest exercise in poor judgment, I'm sure you can find it somewhere on that thing we writers were striking to claim dominion over. Just to be on the safe side, I apologize in advance. Please know that my aim was only to provoke a bit of gaiety through the judicious use of a little thing I like to call "the truth." Unfortunately, in the television business, the truth rarely sets anyone free. More often than not, it just pisses them off. See more »


References Star Wars: Episode IV - A New Hope (1977) See more »


The Big Bang Theory Theme (Instrumental)
Composed and Performed by Barenaked Ladies
See more »

Frequently Asked Questions

This FAQ is empty. Add the first question.

User Reviews

The Loobenfeld Decay was a mostly amusing episode of "The Big Bang Theory"
16 April 2008 | by (Baton Rouge, La.) – See all my reviews

Sheldon and Leonard are arguing the logic of the Terminator movies and TV series when they hear some awful singing. It's Penny who tells them she's performing in a local production of "Rent" for one night only and invites them to see her on stage. Leonard mentions that he and Sheldon are going to a symposium that night though Sheldon almost ruins that lie by nearly mentioning the real night of that. After she's gone, Leonard mentions to his roommate why he lied to Penny and the necessities of doing so for social purposes. Sheldon decides to replace that fib for a more complicated one about a cousin who's in rehab. That "cousin" later appears in the form of a fellow colleague/aspiring actor who argues about characterization with Sheldon. Hardly matters since Penny taped her performance and gets Leonard to watch while he leaves Sheldon and the "actor" alone with their bickering...Pretty funny, if not hilarious episode of "The Big Bang Theory". As usual, Sheldon has much of the best lines though D. J. Qualls as the fake cousin steals the few scenes he's in with his constant embellishments. Penny herself has her moments when trying to explain to Howard and Raj the story that Sheldon told about his "cousin". Oh, and as a Filipino born in this country, I was not offended by Qualls "childhood abuse" from a chaplain from that Asian country. Though according to Chuck Lorre's censored vanity card, it was originally supposed to be a Catholic priest! (Again, while Catholic, not offended.) Very glad this show is back.

4 of 4 people found this review helpful.  Was this review helpful to you?

Message Boards

Recent Posts
Have Some Episodes Been Pulled From Syndication? spin73
The Vacation Solution Question spin73
Playing sports badly nan1701
Why would they kill off Professor Proton massjohn
Set question - Are there apartments 'above' the stairs? Kevin-94
Are their tastes in comics believable? Rheli
Discuss The Loobenfeld Decay (2008) on the IMDb message boards »

Contribute to This Page

Create a character page for: