417 - The Toast Derivation
Aired February 24, 2011

The Toast Derivation

With Leonard and Priya now dating, the gang are spending more time at Priya's apartment. Sheldon is uncomfortable with this change but is powerless to stop it. After realizing Leonard is the center of their social group, not him, Sheldon sets out to find a new group of friends who will have fun his way. Meanwhile, Penny tries to move on after seeing Leonard in his new relationship.

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Guest Stars: Kevin Sussman as Stuart, John Ross Bowie as Barry Kripke, Brian Thomas Smith as Zack, Aarti Mann as Priya, LeVar Burton as Himself

Writers: Bill Prady (Story), Dave Goetsch (Story), Maria Ferrari (Story), Chuck Lorre (Teleplay), Steven Molaro (Teleplay), Jim Reynolds (Teleplay)

Director: Mark Cendrowski

Viewers: 12.35 million Households Rating: 7.4/12 Adults 18-49 Rating: 3.8/11

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Episode Notes

  • The title refers to Sheldon's factoid about the derivation of the word "toast" for the drinking ritual.

> Sheldon's Knock

When Sheldon grows tired of his alternative social group, he goes to Raj's apartment and knocks for "All my friends." As they were talking about Sheldon before he showed up, Howard quips "I think it's like Beetlejuice. We said his name too many times."

Quotes (32)

Sheldon: Jacuzzi is a commercial brand, hot tub is the generic term, i.e., all Jacuzzis are hot tubs, but not all hot tubs are Jacuzzis.
Zack: Is that like all thumbs are fingers but not all fingers are thumbs?
Sheldon: Surprisingly, yes.
Zack: Nice! Now what exactly are toes?

Wolowitz: Raj, did you ever tell your sister about the time Sheldon got punched by Bill Gates?
Priya: Oh, God, you're kidding.
Raj: No, Gates gave a speech at the university. Sheldon went up to him afterwards and said, "Maybe if you weren't so distracted by sick children in Africa you could have put a little more thought into Windows Vista."
Leonard: Bam, right in the nose. Made me proud to own a PC.

Sheldon:He'll be back.
Leonard: (Through the door) Of course, I'll be back, I live here!

Amy: Y'know, if being on your own is new to you, I'd be happy to share some tension-relieving techniques for ladies I've perfected over the years. For example, do you own an electric toothbrush?
Penny: No
Amy: You should get one!

Bernadette: We just thought you might want to go out and have a good time. Maybe go dancing?
Penny: Oh, gee, thanks, but I'm not really in the mood.
Amy: You do understand that it will distract you from obsessing over the rich variety of sweet loving that your ex-boyfriend is currently receiving from the fiery jewel of Mumbai?

News Stories

Title Date Posted
Episode 4.17 Ratings February 25, 2011

The ratings for the February 24, 2011 episode of The Big Bang Theory are out.  Full story

CBS Announces Episode 4.17 February 14, 2011

CBS has announced the details for the February 24th episode of The Big Bang Theory.  Full story


When Leonard decides they should go over to Raj's apartment for dinner with Priya and the gang, Sheldon insists they should follow their Thursday night ritual of ordering pizza in the apartment. Unable to convince Leonard to change his mind, Sheldon tags along for dinner at Raj. When Sheldon is unimpressed by the food and audiovisual equipment at Raj's, Sheldon leaves and heads to the Cheesecake Factory, where he shares his woes with the bartender, Penny. When Amy video chats with Sheldon, she helps him see that Leonard is actually the nucleus of their group.

Another night at Sheldon and Leonard's apartment, Sheldon is preparing snacks for his new social group: Stuart, Barry Kripke, Zack, and LeVar Burton. Sheldon's activities for his house guests fail to impress and the night quickly deviates from Sheldon's schedule. Sheldon's vintage game choices leave his guests cold, so they decide to get some beers and bring in a karaoke machine. Meanwhile, Amy and Bernadette pick up Penny for a night on the town to get her mind off Leonard and Priya. Penny is initially against the idea of going out to pick up men, but when Amy and Bernadette find a romantic gift Leonard had bought Penny when they were together, she is convinced she could use a distraction from Leonard.

With Leonard and the rest of the gang having dinner at Raj's apartment, the gang reminisces about their time spent with Sheldon and how, inexplicably, he does add to their dinner parties. Midway through their discussion about Sheldon, the man himself turns up, having left his new friends because "they were having fun wrong". The gang welcome Sheldon back to the group. Meanwhile, LeVar Burton turns up at Sheldon's shindig only to find a drunk Kripke, Zach and Stuart (who's wearing a towel) signing "Walking On Sunshine".

Comments (57)

Kevin United States, 23:40 Jan 9 2013.
@Ben There is a movie called "Harry Potter and the Sorcerer's Stone." It was the American release title for "Harry Potter and the Philosopher's Stone." Rowling was afraid Americans wouldn't know what a philosopher's stone was.
Ben United Kingdom, 17:48 Jun 8 2012.
in episode 17 sheldon says "harry potter and 98% of the sorcerers stone" but there is no harry potter movie called the sorcerers stone.
Beci United Kingdom, 10:34 Dec 3 2011.
J'adore Big Bang Theory! My nerd side!! =)
TBBTFAN85 United States, 21:05 Mar 31 2011.
Jasmine - His name is Rick Fox, formally of the LA Lakers.
Smooth Criminal Australia, 19:55 Feb 28 2011.
@Jasmine, The guy at the end of the episode 17. He is LeVar Burton (Lt. Cmr Geordi La Forge from ST:TNG) the guy with the VISOR around is eyes.
Manu Germany, 19:25 Feb 28 2011.
@ Eg: Thank you! Hopefully the rumours are true! I hope that someone will post the new seasons at kino.to once they`re done. We don`t even have the 4th season at german television. That`s sad... but nevertheless, the english version rules!
jasmine South Korea, 10:44 Feb 28 2011.
who's the man at the end of the episode 17? I cn't remember his name. plz some body tells me!
Eg Faroe Islands, 09:14 Feb 28 2011.
Yes it's true, they are renewed for three more seasons! :)
Manu Germany, 19:34 Feb 27 2011.
Do any of you guys know about some more seasons? I heard about them planning three more seasons! I have to say that I`m not a fan of that 'lovers-thing' (Penny/Leonard/Priya, Howard/Bernadette...) I want some more of the original nerd-stuff. Still, Sheldon rules! This character`s fascinating and gives me lots of fun!
Frank Australia, 03:37 Feb 27 2011.
I LLLOVVVEEE Bernadette. She makes me laugh and has her very own special sex appeal. It's that cheeky smile.

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