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The Worst Episodes of The Big Bang Theory

Every episode of The Big Bang Theory ranked from worst to best. Explore the Worst Episodes of The Big Bang Theory!

Physicists Leonard and Sheldon find their nerd-centric social circle with pals Howard and Raj expanding when aspiring actress Penny moves in next door.
Genre:Comedy
Network:CBS

Worst Episodes Summary

"The Matrimonial Momentum" is the worst rated episode of "The Big Bang Theory". It scored 6.8/10 based on 4037 votes. Directed by Mark Cendrowski and written by N/A, it aired on 9/21/2015. This episode scored 0.0 points lower than the second lowest rated, "The Cognition Regeneration".

  • The Matrimonial Momentum
    6.8/104,037 votes
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    #1 - The Matrimonial Momentum

    Season 9 Episode 1 - Aired 9/21/2015

    After driving to Vegas to get married, Penny struggles with Leonard’s confession that he kissed another girl. Also, Sheldon doesn't know how to act after Amy pushes pause on their relationship.

    Director: Mark Cendrowski

    Writer: N/A

  • The Cognition Regeneration
    6.8/102,663 votes
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    #2 - The Cognition Regeneration

    Season 10 Episode 22 - Aired 4/27/2017

    Leonard isn’t thrilled when Penny considers taking a new job offered by her ex-boyfriend, Zack.

    Director: Mark Cendrowski

    Writer: N/A

  • The Athenaeum Allocation
    6.8/102,543 votes
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    #3 - The Athenaeum Allocation

    Season 11 Episode 17 - Aired 3/8/2018

    Leonard jumps through hoops to help secure the perfect wedding venue for Sheldon and Amy. Also, Bernadette and Howard have a hard time deciding who should stay at home with the kids and who should go back to work.

    Director: Mark Cendrowski

    Writer: N/A

  • The Planetarium Collision
    6.8/102,637 votes
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    #4 - The Planetarium Collision

    Season 12 Episode 5 - Aired 10/18/2018

    When Amy doesn’t have time to work on super-asymmetry, Sheldon goes to great lengths to ensure she’s available to work with him even it if means accidentally sabotaging her career in the process. Raj doesn’t want Howard to join him in hosting a show at the planetarium.

    Director: Mark Cendrowski

    Writer: N/A

  • The Romance Recalibration
    6.9/102,837 votes
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    #5 - The Romance Recalibration

    Season 10 Episode 13 - Aired 1/19/2017

    When Penny feels that Leonard is taking her for granted, she decides to go on a spa weekend with Amy. Also, Wolowitz and Koothrappali try to fix a squeaky floorboard in the baby’s room.

    Director: Mark Cendrowski

    Writer: N/A

  • The First Pitch Insufficiency
    7.0/103,713 votes
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    #6 - The First Pitch Insufficiency

    Season 8 Episode 3 - Aired 9/29/2014

    Wolowitz feels nervous when he is asked to throw the first pitch at a Los Angeles Angels game. Penny and Leonard want to prove Sheldon wrong after he says he and Amy are the better couple.

    Director: Mark Cendrowski

    Writer: N/A

  • The Champagne Reflection
    7.0/103,459 votes
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    #7 - The Champagne Reflection

    Season 8 Episode 10 - Aired 11/20/2014

    While Sheldon says a tearful goodbye to the final installment of "Fun with Flags", Leonard, Howard and Raj search for something significant in a dead professor's research. And Bernadette finds out what her colleagues really think of her.

    Director: Mark Cendrowski

    Writer: N/A

  • The Communication Deterioration
    7.0/103,100 votes
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    #8 - The Communication Deterioration

    Season 8 Episode 21 - Aired 4/16/2015

    When Raj is asked to create a message in case a NASA mission discovers alien life, the guys fight over what he should do. Also, Penny is torn between auditioning for a movie or keeping her successful pharmaceutical sales job.

    Director: Mark Cendrowski

    Writer: N/A

  • The Relaxation Integration
    7.0/102,764 votes
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    #9 - The Relaxation Integration

    Season 11 Episode 3 - Aired 10/9/2017

    Sheldon and Amy struggle with picking a wedding date, which stresses out Sheldon and causes him talking in his sleep. Meanwhile, Raj and Stuart fight over the attention of one of Bernadette's co-workers.

    Director: Mark Cendrowski

    Writer: N/A

  • The Tam Turbulence
    7.0/102,637 votes
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    #10 - The Tam Turbulence

    Season 12 Episode 4 - Aired 10/11/2018

    When Sheldon won't tell anyone why he's never mentioned his childhood best friend, Leonard takes matters into his own hands. Bernadette and Penny take out Raj’s fiancée for dinner to get the skinny on her.

    Director: Mark Cendrowski

    Writer: N/A

  • The Inspiration Deprivation
    7.0/102,526 votes
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    #11 - The Inspiration Deprivation

    Season 12 Episode 19 - Aired 4/18/2019

    The concept of what it would mean for women everywhere if Amy were to win a Nobel Prize causes Amy to have a meltdown. Also, Howard and Raj try to relive the good old days after Howard buys a scooter that looks like the one he had years ago.

    Director: Mark Cendrowski

    Writer: N/A

  • The Allowance Evaporation
    7.1/102,655 votes
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    #12 - The Allowance Evaporation

    Season 10 Episode 16 - Aired 2/16/2017

    Sheldon and Amy have their first fight since moving in together, and Koothrappali is shocked at the realities of financial independence when he stops receiving support from his father.

    Director: Mark Cendrowski

    Writer: N/A

  • The Escape Hatch Identification
    7.1/102,661 votes
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    #13 - The Escape Hatch Identification

    Season 10 Episode 18 - Aired 3/9/2017

    When Raj moves out of his apartment, Leonard and Penny offer him Sheldon's old room.

    Director: Mark Cendrowski

    Writer: N/A

  • The Collaboration Fluctuation
    7.1/102,708 votes
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    #14 - The Collaboration Fluctuation

    Season 10 Episode 19 - Aired 3/30/2017

    Leonard, Penny and Raj adjust to their new living arrangement, and Sheldon takes an interest in Amy’s work.

    Director: Mark Cendrowski

    Writer: N/A

  • The Gyroscopic Collapse
    7.1/102,625 votes
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    #15 - The Gyroscopic Collapse

    Season 10 Episode 23 - Aired 5/4/2017

    After Leonard, Sheldon and Wolowitz celebrate the completion of the top secret air force project, they are met with an unpleasant surprise. Also, Amy is offered a summer position as a visiting researcher.

    Director: Anthony Joseph Rich

    Writer: N/A

  • The Explosion Implosion
    7.1/102,698 votes
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    #16 - The Explosion Implosion

    Season 11 Episode 4 - Aired 10/16/2017

    As Howard worries about fatherhood, he and Sheldon bond when they jointly assemble a model rocket. Meanwhile, Penny bonds with Leonard's mother, Beverly, much to his concern.

    Director: Mark Cendrowski

    Writer: N/A

  • The Tesla Recoil
    7.1/102,622 votes
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    #17 - The Tesla Recoil

    Season 11 Episode 8 - Aired 11/16/2017

    Leonard and Howard are furious after they learn Sheldon went to work with the military behind their backs. Also, while Bernadette is on bed rest, she asks Raj to do some digging when she suspects that Ruchi might be trying to take over her projects at work.

    Director: Anthony Joseph Rich

    Writer: N/A

  • The Celebration Reverberation
    7.1/102,580 votes
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    #18 - The Celebration Reverberation

    Season 11 Episode 11 - Aired 12/14/2017

    Raj and Howard's feud continues as the gang plan Halley's first birthday party. Sheldon's surprise for Amy's birthday goes awry when they get food poisoning. Also, Leonard gets a Christmas letter from his brother that causes him to spiral out about his own lack of accomplishments.

    Director: Mark Cendrowski

    Writer: N/A

  • The Neonatal Nomenclature
    7.1/102,527 votes
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    #19 - The Neonatal Nomenclature

    Season 11 Episode 16 - Aired 3/1/2018

    When Bernadette won't go into labor, the gang tries different tactics to get things started. Also, Howard confronts Bernadette after Amy accidentally reveals she's already chosen their son's name.

    Director: Gay Linvill

    Writer: N/A

  • The Gates Excitation
    7.1/102,582 votes
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    #20 - The Gates Excitation

    Season 11 Episode 18 - Aired 3/29/2018

    Bill Gates visits Penny's work, and the gang schemes to meet him. Hilarity ensues. Meanwhile, Sheldon is convinced that he's a target of an April's Fools prank.

    Director: Mark Cendrowski

    Writer: N/A

  • The Reclusive Potential
    7.1/102,541 votes
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    #21 - The Reclusive Potential

    Season 11 Episode 20 - Aired 4/12/2018

    A brilliant but reclusive scientist, Doctor Wolcott, invites Sheldon to his cabin in the middle of nowhere, and Leonard, Raj and Howard go along for the trip. Also, Penny and Bernadette improvise after Amy doesn’t like the tame bachelorette party they planned for her.

    Director: Mark Cendrowski

    Writer: N/A

  • The Propagation Proposition
    7.1/102,517 votes
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    #22 - The Propagation Proposition

    Season 12 Episode 12 - Aired 1/10/2019

    Penny runs into her ex-boyfriend, Zack, who invites her and Leonard to a dinner to meet his newlywed wife. After the dinner the newlywed couple make an odd proposition to Leonard, which makes Penny to freak out. Also, Raj attempts to mend things with his ex-fiancée, Anu.

    Director: Mark Cendrowski

    Writer: N/A

  • The Confirmation Polarization
    7.1/102,539 votes
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    #23 - The Confirmation Polarization

    Season 12 Episode 13 - Aired 1/17/2019

    Sheldon and Amy are thrilled when their super asymmetry theory is proven by two physicists, until they try to kick Amy off the Nobel nomination. Also, Bernadette gets one of her drugs approved at work and wants a reluctant Penny to head the sales team.

    Director: Mark Cendrowski

    Writer: N/A

  • The Meteorite Manifestation
    7.1/102,526 votes
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    #24 - The Meteorite Manifestation

    Season 12 Episode 14 - Aired 1/31/2019

    Sheldon is thrilled to help Bernadette and Wolowitz navigate bureaucratic paperwork, until he discovers they are breaking the law. Also, Leonard is disappointed when his friends exclude him from a scientific project.

    Director: Mark Cendrowski

    Writer: N/A

  • The Conference Valuation
    7.1/102,515 votes
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    #25 - The Conference Valuation

    Season 12 Episode 17 - Aired 3/7/2019

    When Penny and Bernadette go to San Diego for a pharmaceutical sales convention, Wolowitz is in charge of the kids. Also, Sheldon finds a book on experimenting on kids, and the guys plus Amy make a day of it.

    Director: Mark Cendrowski

    Writer: N/A