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The Big Bang Theory
S9.E22
All episodesAll
  • Cast & crew
  • User reviews
  • Trivia
IMDbPro

The Fermentation Bifurcation

  • Episode aired Apr 28, 2016
  • TV-PG
  • 20m
IMDb RATING
7.4/10
3K
YOUR RATING
Mayim Bialik, Kaley Cuoco, Johnny Galecki, Simon Helberg, Brian Thomas Smith, and Kunal Nayyar in The Big Bang Theory (2007)
The Big Bang Theory: The Fermentation Bifurcation
Play trailer2:23
2 Videos
20 Photos
ComedyRomance

Sheldon and Bernadette spend the evening together while the rest of the gang go to a wine tasting party, but things get uncomfortable for Raj when Penny's ex-boyfriend Zack shows up and take... Read allSheldon and Bernadette spend the evening together while the rest of the gang go to a wine tasting party, but things get uncomfortable for Raj when Penny's ex-boyfriend Zack shows up and takes an interest in Claire.Sheldon and Bernadette spend the evening together while the rest of the gang go to a wine tasting party, but things get uncomfortable for Raj when Penny's ex-boyfriend Zack shows up and takes an interest in Claire.

  • Director
    • Nikki Lorre
  • Writers
    • Chuck Lorre
    • Bill Prady
    • Steve Holland
  • Stars
    • Johnny Galecki
    • Jim Parsons
    • Kaley Cuoco
  • See production info at IMDbPro
  • IMDb RATING
    7.4/10
    3K
    YOUR RATING
    • Director
      • Nikki Lorre
    • Writers
      • Chuck Lorre
      • Bill Prady
      • Steve Holland
    • Stars
      • Johnny Galecki
      • Jim Parsons
      • Kaley Cuoco
    • 3User reviews
    • 1Critic review
  • See production info at IMDbPro
  • Videos2

    The Big Bang Theory: Fetus Friendly Festival Of Fun
    Clip 0:46
    The Big Bang Theory: Fetus Friendly Festival Of Fun
    The Big Bang Theory: The Fermentation Bifurcation
    Trailer 2:23
    The Big Bang Theory: The Fermentation Bifurcation
    The Big Bang Theory: The Fermentation Bifurcation
    Trailer 2:23
    The Big Bang Theory: The Fermentation Bifurcation

    Photos19

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    Top cast9

    Edit
    Johnny Galecki
    Johnny Galecki
    • Leonard Hofstadter
    Jim Parsons
    Jim Parsons
    • Sheldon Cooper
    Kaley Cuoco
    Kaley Cuoco
    • Penny Hofstadter
    Simon Helberg
    Simon Helberg
    • Howard Wolowitz
    Kunal Nayyar
    Kunal Nayyar
    • Raj Koothrappali
    Mayim Bialik
    Mayim Bialik
    • Amy Farrah Fowler
    Melissa Rauch
    Melissa Rauch
    • Bernadette Rostenkowski
    Brian Thomas Smith
    Brian Thomas Smith
    • Zack Johnson
    Alessandra Torresani
    Alessandra Torresani
    • Claire
    • Director
      • Nikki Lorre
    • Writers
      • Chuck Lorre
      • Bill Prady
      • Steve Holland
    • All cast & crew
    • Production, box office & more at IMDbPro

    User reviews3

    7.42.9K
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    Featured reviews

    lyndavanleeuwen

    Great episode!

    Loved seeing Zach again and with a fun role in this episode! It added so much to the interaction between characters. Great scenes with Sheldon and Bernadette and of course their interaction is entertaining! Always good to see old friends return to the show. We know their personalities, but the writers create wonderful dialogue and relationships. Zach's lines were super funny. Thanks for this episode! Interested to see how Raj's relationship with Claire proceeds after the challenges established. Not sure why we lost Emily from the cast? We enjoyed seeing the partners interact with others partners from time to time and this episode provided that. Almost as good as Amy & Howard singing Neil Diamond! Zach added some zest to their discussion and their moral dilemmas so he was a welcome visitor. What a pleasant surprise to see him at the wine tasting! Curious how Bernadette will deal with the pregnancy belly strap on next season!
    9Hitchcoc

    Zach Is a Great Character

    I was pleased to see the return of Zach, Penny's ex. He is one of my favorite characters. He is not the least pretentious, he is charming in a dumb way. And clueless most of the time. Everyone else is full of angst, but he keeps rolling along. This is about a wine tasting where Bernadette can't come and so she spends the evening with Sheldon. Also, Raj's new girlfriend is caught in a crazy place because of Raj's lack of self esteem.

    Related interests

    Will Ferrell in Anchorman: The Legend of Ron Burgundy (2004)
    Comedy
    Ingrid Bergman and Humphrey Bogart in Casablanca (1942)
    Romance

    Storyline

    Edit

    Did you know

    Edit
    • Trivia
      Amy says that she and Howard last spent time together three years ago. This is a reference to the seventh season episode The Scavenger Vortex (2013) that was aired 2.5 years before: it refers to when the two were paired together for the scavenger hunt created by Raj, or the Neil Diamond concert the two said they should go to.
    • Goofs
      When showing Bernadette all the different ways to make toast, Sheldon neglects to mentions the Cylon toast (from Battlestar Galactica (2004)) which he made in The Cornhusker Vortex (2009).
    • Quotes

      Sheldon Cooper: Wine again? No, thank you. I like my grapes the old-fashioned way: in a juice box.

    • Crazy credits
      CHUCK LORRE PRODUCTIONS, #529

      Sometimes I begin writing a vanity card with no idea what I'm writing about. I don't recommend this. What usually happens is I wind up with a collection of sentences that have a vague linear trajectory, but no real purpose. In some ways it's like all the high school and college essay exams where I purposely tried to hide my lack of preparation behind a voluminous cascade of impressive sounding words. My theory was that a thick stack of single-spaced, purple prose would be so off-putting to the teacher, he or she would slap a 'C' on the paper in order to avoid wading through a lot of cursive bull$#!+. Needless to say, the short, succinct style of these vanity cards forestalls that exact approach, but I am hopeful it still has the power to distract. Sonorous fodder like, "vague linear trajectory," "voluminous cascade," "forestall," and "sonorous fodder" are all used to just that end. Which raises the question: Why? What compels me to obfuscate? Sadly, I have no good answer. I do have a bad one. I take a childish delight in wasting your time. I know that's setting the bar pretty low, but keep in mind, at an early age I was happy to get a 'C'.
    • Connections
      References Star Wars: Episode IV - A New Hope (1977)
    • Soundtracks
      History of Everything
      (uncredited)

      Written by Barenaked Ladies

      Performed by Barenaked Ladies

      [Series theme song played during the opening titles]

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    Details

    Edit
    • Release date
      • April 28, 2016 (United States)
    • Country of origin
      • United States
    • Language
      • English
    • Filming locations
      • Stage 25, Warner Brothers Burbank Studios - 4000 Warner Boulevard, Burbank, California, USA(Studio)
    • Production companies
      • Chuck Lorre Productions
      • Warner Bros. Television
    • See more company credits at IMDbPro

    Tech specs

    Edit
    • Runtime
      • 20m
    • Color
      • Color
    • Sound mix
      • Stereo
    • Aspect ratio
      • 16:9 HD

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