The Big Bang Theory
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The Grasshopper Experiment - S1-E8

Continuity mistake: When Raj's parents tell him to put his laptop down and gather his friends, they all huddle around the one-seat sofa. Sheldon is crouched to the left of the seat with his hands on the sidearm, yet in shots angled at the left he has disappeared from his place (as to not obstruct these particular angled shots.) (00:02:00)

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Show generally

Revealing mistake: If you look at the marble patterns on the walls, they are all exactly the same from floor to floor. Also the bricks oddities on the stairway match from floor to floor. They change lights, elevator tape etc. but it's the same floor used over and over as different floors.

terry s

The Tangerine Factor - S1-E17

Character mistake: When Leonard and Sheldon sit down for lunch at work, Sheldon grabs the salt and pepper and begins to shake the "shakers" over his food. However, these are grinders and not shakers. He would have had to twist the tops in order to get any salt or pepper. (00:16:10)

The Einstein Approximation - S3-E14

Continuity mistake: When Sheldon is looking for another job, the woman is holding a piece of yellow paper up. Camera cuts and she is no longer holding the piece of paper.

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The Werewolf Transformation - S5-E18

Continuity mistake: When Penny is giving Sheldon his haircut, she accidentally shaves the back of his head. The clippers are going from the bottom of Sheldon's hair, up to the top of his head. When Sheldon goes to leave the room, it can be seen only four or five inches from the back of his head have been shaved off.

Casual Person
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The Griffin Equivalency - S2-E4

Continuity mistake: In the opening scene, just after Howard says, 'Creepy good or creepy bad?', there is a shot where Howard is holding his food, even though Leonard hasn't given it to him yet and it isn't there in the shot before or after. After Leonard gives the food to Howard, the exact same shot is used after he says, 'I'm not necessarily talking about the food', so the shot was taken from there and it is shown twice. (00:00:25)

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The Pancake Batter Anomaly - S1-E11

Continuity mistake: After Leonard gives Penny her pile of mail, she alternates from holding the pile by her side to at her front between each shot. (00:01:10)

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The Bad Fish Paradigm - S2-E1

Continuity mistake: When Sheldon is sitting with Raj in his apartment watching television, the can of soda on the table in front of him rotates itself a couple of times. (00:14:40)

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The Recombination Hypothesis - S5-E13

Factual error: Leonard lies to Sheldon about his being over at Penny's at 3am by saying he went across the street to use the gas station bathroom. Sheldon refers to it as "The Colorado Boulevard Chevron." The address of their apartment building is 2311 N. Los Robles. Colorado Boulevard is five miles away. (Yes, it's a fantasy sequence, but even in Leonard's head, Sheldon's not likely to make a mistake like that). (00:15:45)

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Pilot - S1-E1

Continuity mistake: When Penny is in the shower, there is a red comb on the cistern of the toilet. In the next shot, it has moved without anyone touching it. (00:15:50)

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Season 1 generally

Continuity mistake: In "The Luminous Fish Effect" (S1E04) Sheldon tells Penny he weighs 140 pounds. In "The Porkchop Indeterminacy" (S1E16), he tells his sister he weighs 165. 25lbs difference would be a noticeable change, but he looks the same.

Upvote valid corrections to help move entries into the corrections section.

Suggested correction: Lying to Penny but not to his sister, not inconsistent with the characters and his relationships.


There's been several episodes showing Sheldon is not a good liar.


The Work Song Nanocluster - S2-E18

Continuity mistake: When Penny puts the box down at the start it is closed. Camera cuts and it's open instantly.

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The White Asparagus Triangulation - S2-E9

Continuity mistake: When Leonard is helping Sheldon open the jar, the red napkin which he left on the couch where he was sitting changes position or vanishes in every shot.

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The Loobenfeld Decay - S1-E10

Continuity mistake: During the whole opening scene, the way in which Leonard holds the letters in his hands keeps differing.

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The Lizard-Spock Expansion - S2-E8

Continuity mistake: At the very beginning, Leonard's Diet Coke keeps changing position without anyone touching it.

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The Pork Chop Indeterminacy - S1-E15

Continuity mistake: When Sheldon says that his sister was sent to spy on him, his arms are behind his back. Camera cuts and they are now at his side.

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The Peanut Reaction - S1-E16

Continuity mistake: When Penny asks Sheldon "What trauma?" in the electronics store, Sheldon holds two boxes - one with an orange side on top of one with a black side. In the next shot the black sided box is on top of the orange one. The boxes then continue to swap places during the whole scene. (00:11:50)

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The Vartabedian Conundrum - S2-E10

Continuity mistake: When Sheldon is talking via the laptop, the amount of letters in the words he says is different to the amount of keys hit.

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The Parking Spot Escalation - S6-E9

Continuity mistake: In this episode Penny mentions she has a sister ("I remember my first bikini wax. My sister did it with duct tape and melted Crayolas"), but in future episodes she has only a brother.

The Deception Verification - S7-E2

Continuity mistake: In the scene where Howard and Raj are comparing the size of their breast area, Bernadette is seen in the background holding a mug with the handle in her right hand. However, when the scene zooms in on her, the handle appears in her left hand.


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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