The Big Bang Theory

The Loobenfeld Decay - S1-E10

Corrected entry: In "The Loobenfield Decay" Sheldon and Leonard go to absurd lengths to avoid having to hear Penny perform because her singing voice is so horrible. But in series 2 episode 18 "The Work Song Nanocluster", series 3 episode 3 "The Gothowitz Deviation" and series 3 episode 8 "The Adhesive Duck Deficiency" (amongst others) she is shown to have a strong, pleasant singing voice, and she sings in front of both men without them objecting. They aren't just being polite - they genuinely like her singing. So, which is it?

Correction: If either of those episodes occurred before "The Loobenfield Decay" episode than this could be a valid plot hole BUT they all occur after. It is fair to conclude that she got better.


The Staircase Implementation - S3-E22

Corrected entry: When Sheldon tells Leonard about the time travel clause, he states "in precisely five seconds." Anybody who knows anything about time travel know that you need a definitive point in time, so without having that exact date and time written down somewhere, there's no way a future version of them could arrive at that unspecified time. Sheldon's too anal to ignore something like that.


Correction: The precise time would be slightly before the signing of the Roommate Agreement, which is about to happen, so it's a markable point in their histories/future histories.

Captain Defenestrator Premium member

The Cruciferous Vegetable Amplification - S4-E2

Corrected entry: When Sheldon is taking his Apple II to be signed by Steve Wozniak, the machine he's taking clearly has a monitor attached in place on the top. The Apple II did not have an attached monitor.

Moose Premium member

Correction: You can clearly see a gap between monitor and main computer unit, indicating that they are separate units. Also the colors are different, further indicating they were made separately.


The Wiggly Finger Catalyst - S5-E4

Corrected entry: In this episode, everyone is surprised to learn that Raj's family is enormously rich, but in episode 15 of season 4 Raj states that his family is wealthy and has lots of servants.

Correction: They knew Raj's father was a well-off doctor, so someone we might call upper class. This episode they found out he was extremely rich, more along the lines of the richest men in the country.


The Luminous Fish Effect - S1-E4

Corrected entry: When Penny and Sheldon are driving to the supermarket, Sheldon is explaining the weight of the car and how it affects her braking time. He estimates the car's weight to be 4000 pounds, 140 for himself and 120 for Penny, and then rounds the total up to be 4400 pounds, when it actually should be 4260. It's extremely out of character for somebody like Sheldon to make such a basic addition mistake.


Correction: Or he could be including other things he just failed to mention, such as the contents of the vehicle and trunk.


The Toast Derivation - S4-E17

Corrected entry: Sheldon makes fun of Leonard's idea to go to Raj's for dinner by speculating that they could stop using the letter M, which would be "isguided and oronic. Later he says that "This is adness. Complete and utter adness. He should have said "This is adness. Coplete and utter adness., leaving the M out of the word "complete" - and there is no way a pedantic, obsessive genius like Sheldon would make a mistake like that.

Correction: I viewed this scene more than 10 times and listened closely and Sheldon says, "This is adness; this is utter and coplete adness. He does in fact take the "m" out of the word complete.

The Dumpling Paradox - S1-E7

Corrected entry: Sheldon states that reductio ad absurdum is "the logical fallacy of extending an argument to a ridiculous extreme and then challenging it". This is incorrect; this is the straw man fallacy. Reductio ad absurdum is the entirely valid inferential technique of demonstrating that the consequences of an argument being true result in a contradiction.

Moose Premium member

Correction: Sheldon is correct. "Reductio ad absurdum" (Latin: "reduction to the absurd") is a form of argument in which a proposition is disproven by following its implications logically to an absurd consequence. Proof by contradiction is a specific form of Reductio ad absurdum. strawman argument is committed when a person simply ignores a person's actual position and substitutes a distorted, exaggerated or misrepresented version of that position. The major difference between the two is that an Reductio ad absurdum argument presents the opponent's claim correctly but carries it to an extreme. The Strawman argument presents the opponent's claim incorrectly.


The Adhesive Duck Deficiency - S3-E8

Corrected entry: When Penny and Sheldon get into the car to drive to the hospital, she makes the remark, "You do have a learner's permit, right?" He answers yes and explains he has logged several simulation hours which ended badly. She already knows he has a learner's permit and about the simulations, since in season 2, "The Euclid Alternative," she was with him at the DMV when he got the permit and stood beside him during the simulation, actually hitting him in the face with a pillow to mimic an airbag when he crashed.


Correction: Actually, after Sheldon said that it was the first time driving an actual vehicle, she said "you do have 'your' learners permit, right?" It was an indirect reference to the fact that (approx) a year had passed (a season for us viewers) and he had not stepped into an actual vehicle. Penny has been known to be sarcastic from time to time.


The Killer Robot Instability - S2-E12

Corrected entry: Kripke states that there is no guarantee that he will face Leonard, Sheldon, and Raj in the round-robin. In a round-robin, all competitors face each other in turn. It is out of character for Kripke not to be aware of this, and especially for Sheldon to not correct someone making this basic mistake.


Correction: Although the tournament is scheduled as a round robin, it's apparent that a losing robot may be actually destroyed and unable to compete further. MONTE would be unable to face Kripke's robot if it was destroyed in a previous match, regardless of whether it was scheduled to meet them or not.

Moose Premium member

The Creepy Candy Coating Corollary - S3-E5

Corrected entry: Wil Wheaton tells Sheldon that he missed the convention because his grandmother died. When Wheaton later refers to a living grandmother, Sheldon realizes he has been tricked. He shouldn't - presumably Wheaton, like everyone else, has two grandmothers (mother's and father's side) and thus Wheaton announcing he has a living grandmother in no way contradicts what he said before. This alone shouldn't tip Sheldon off that Wheaton was lying.

Moose Premium member

Correction: In context of how the scenes played out, it is directly implied (and very obvious) that Wheaton is talking about the same grandmother.


The Excelsior Acquisition - S3-E16

Corrected entry: Penny got a red light camera ticket while Sheldon was driving her car. She says she gave up Sheldon as the driver to the court because she didn't want to get any more points on her license. You don't get points on your license for a camera issued violation. The registered owner just gets a straight fine. A police officer has to issue a ticket at the scene to get license points.

terry s

Correction: Penny is not a legal expert. She might not be aware of this technicality and is still afraid of losing points.

Captain Defenestrator Premium member

Show generally

Corrected entry: In the episodes "The Dumplings Paradox" and "The Pirate Solution" Penny mentions that she has a brother. But in the episode "The Maternal Capacitance", Penny talks to Leonard's mother about how her father had always wanted a boy.


Correction: She has a younger brother. Her father treated her like a boy because the male had not been born yet. And apparently, he kept treating her like a boy.


Pilot - S1-E1

Corrected entry: Raj talks aloud whilst Penny is still in the room.


Correction: Raj enters the room while Penny is in the bathroom about to take a shower. Raj does talk but, doesn't yet know she's there.

The Spaghetti Catalyst - S3-E20

Corrected entry: When Sheldon says goodbye to Howard after walking with him on the street, he says "BYE, SHEL" instead of "BYE, HOWARD".


Correction: Howard tells Sheldon to have a nice walk and Sheldon replies "I shall", not "Bye Shel".


The Love Car Displacement - S4-E13

Corrected entry: At the end of the show Sheldon states on the walkie-talkie, "I spy with my little eye, a ferrous metal," Later he reveals that what he spied was the aluminum rims of a police car. Aluminum is a non-ferrous metal - definitely not a mistake Sheldon would make.


Correction: Sheldon does say a non-ferrous metal.

The Vengeance Formulation - S3-E9

Corrected entry: Kripke pumps helium into Sheldon's office to make his voice squeaky while conducting a phone interview. However, the helium is pumped in via a tube that is above the height of Sheldon's head, and helium floats in air; therefore, the helium would have accumulated near the ceiling and would not have affected Sheldon within a couple of minutes as shown.


Correction: Kripky opens 2 massive canisters of helium - enough to accumulate low enough to affect Sheldon's voice.

Ssiscool Premium member

The Friendship Algorithm - S2-E13

Corrected entry: Sheldon asks at the book store information desk if they have any books about making friends, and the employee tells him that all their books like that are for "little kids." It is unreasonable that the employee would not have been able to tell Sheldon about the very well known self-help book "How to Win Friends and Influence People," if Sheldon had not already been able to discover it through a cursory internet search.


Correction: 1. They didn't stock the book. 2. The book was published in 1936. She hadn't heard of it herself. 3. Sheldon only thought of a 'How To make Friends' book after he entered the shop, so the idea of looking up a seventy year old book on the internet is irrelevant.

The Bat Jar Conjecture - S1-E13

Corrected entry: Towards the end of this episode, Raj answers a question by buzzing in with Leslie Winkle sat next to him, and he answers. I though he couldn't talk to women or around women? Is this a mistake?


Correction: This point is addressed earlier in that episode. Leonard explains that he can talk once they're all mingled in with males (as in the audience).


The Precious Fragmentation - S3-E17

Corrected entry: The "ring" prop is alleged to be one used in "The Lord of the Rings" movies. However, the prop used in the TV show has a gold chain, but in the films Frodo's ring is held on a silver chain.


Correction: The chain isn't what's important. It's the ring. The chain is not part of the prop.


The Hamburger Postulate - S1-E5

Corrected entry: When Leonard is explaining his thoughts to Sheldon, during the rant which includes him naming who he intends with the words she or her (eg "She: Penny, Her: Leslie), he states, "Indicating that She: Penny had no interest in me asking Her: Penny out," which makes no sense. (00:03:40)


Correction: Lenord is confused and ranting so making a mistake in that situation is not unlikely.

Ssiscool Premium member

The Habitation Configuration - S6-E7

Continuity mistake: When Howard is almost done moving out of his mother's house, there is a table in front of him with a measuring device in the top corner. In one shot, the device moves to the opposite corner of the table. In a few shots later, the item returns to its original position.

More mistakes in The Big Bang Theory

The Extract Obliteration - S6-E6

Stephen Hawking: Do you like brain teasers?
Sheldon Cooper: Oh, I love brain teasers.
Stephen Hawking: What do Sheldon Cooper and a black hole have in common? They both suck. Neener, neener.

More quotes from The Big Bang Theory

The Holographic Excitation - S6-E5

Trivia: In this episode, Sheldon and Amy are trying to decide on couples' themed Halloween costumes. Sheldon is standing in front of the dry erase board. There are 2 columns written on the board. One named "Couples I Like" and the other "Couples You Like." Under the "Couples You Like" column, one of the couples is Blossom and Joey. Blossom is the name of the television character played by Mayim Bialik in the 90s and Joey was one of her brothers.

More trivia for The Big Bang Theory

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