Hey Arnold!

Save The Tree / New Teacher - S2-E1

Continuity mistake: When Harold eats Mr. Simmons' tomato sandwich, there is a red stain from the tomato on Harold's desk. This stain disappears in later shots.

Weird Cousin / Baby Oskar - S4-E11

Continuity mistake: In "Baby Oskar" the apartment number on the door to Oskar and Suzie's apartment appears and disappears multiple times throughout the episode.

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Weird Cousin / Baby Oskar - S4-E11

Continuity mistake: In "Baby Oskar" when Suzie answers the phone there are 12 buttons on the phone, but when she is sitting on the bed there are 9 buttons.

Bowling255 Premium member

Arnold & Lila / Grand Prix - S3-E13

Continuity mistake: When Arnold, Sid, Eugene, and Stinky are arguing about the name of the go cart the name is already painted on. (00:17:20)

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Runaway Float / Partners - S2-E20

Continuity mistake: The kids' teacher in this episode is Miss Slovak, who was their teacher in the first season, but in the first episode of this season they had a new teacher, Mr. Simmons.

Bowling255 Premium member

Part-Time Friends / Bio Square - S2-E19

Continuity mistake: The kids' teacher in "Bio Square" is Miss Slovak, who was their teacher in the first season, but in the first episode of this season they had a new teacher, Mr. Simmons.

Bowling255 Premium member

Tour de Pond / Teachers Strike - S2-E18

Continuity mistake: The kids' teacher in "Teachers Strike" is Miss Slovak, who was their teacher in the first season, but in the first episode of this season they had a new teacher, Mr. Simmons.

Bowling255 Premium member
Hey Arnold! mistake picture

Coach Wittenberg / Four-Eyed Jack - S2-E16

Factual error: When the kids are bowling for the first time, the placement of the pins is wrong, and when Arnold is bowling there are 11 pins.

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Save The Tree / New Teacher - S2-E1

Continuity mistake: In New Teacher when the principal is telling the class about their new teacher the students switch seats between shots.

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Hey Arnold! mistake picture

Olga Comes Home / Sally's Comet - S1-E15

Continuity mistake: In Sally's Comet when Gerald, Arnold, and Grandpa are in the traffic jam on the way to Hawk Mountain the position and type of cars around them change. When we first see the car there is a truck there and no room for them to turn around. When they do turn around then there is room and the truck is gone.

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Show generally

Continuity mistake: The pets OK sign on Arnold's house changes in different episodes.

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Tutoring Torvald / Gerald Comes Over - S1-E13

Continuity mistake: In Gerald Comes Over, Gerald says whenever he goes to Arnold's house he always goes straight to Arnold's room and has never seen all of Arnold's house. Also he seems never to have met any one else that lives there, but in previous episodes we have seen him in other parts of Arnold's house and met many of the people that live there.

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Arnold's Christmas - S1-E19

Continuity mistake: When Helga is talking about Arnold, the computer store she is in front of is on a corner (Phoebe is seen going around the corner) but a few shots later the store is no longer on a corner.

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Hey Arnold! mistake picture

The List/Haunted Train - S1-E8

Continuity mistake: At the beginning of The Haunted Train Grandpa's ice cream changes color from orange to white.

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Hey Arnold! mistake picture

Helga's Locket / Sid and Germs - S5-E7

Continuity mistake: When Sid decides to be a slob again, he picks up his frog and you can see that he has gloves on. When the following shot shows a close-up of the frog in Sid's hand, the hand holding the frog does not have gloves on.

Hey Arnold! mistake picture

Married - S5-E16

Revealing mistake: Phoebe is going into the school in one scene, but as the camera moves she vanishes while on screen.

On The Lam / Family Man - S5-E17

Character mistake: In the wrestling match, the bell rings after the referee counts to 3 - but he's counting while a wrestler is on the mat stomach-first; a pin requires the loser to be on his back.

AidanN
Hey Arnold! mistake picture

Parents Day - S5-E6

Continuity mistake: In the tricycle section of the last event, the chinpiece of Helga's helmet keeps switching colors.

AidanN

Big Gino / Jamie O. In Love - S4-E2

Revealing mistake: In the cafe, after Charice speaks, when Gerald says "Aloha, Gladiators on Ice", there are three places where Gerald's mouth disappears.

AidanN

Dinner for Four / Phoebe Skips - S4-E5

Revealing mistake: When Helga and Phoebe leave the girls' bathroom together near the end, Helga pushes the door outward, but the hinges are on the inside, so it should only open inward.

AidanN

Helga's Makeover/The Old Building - S1-E4

Trivia: Helga walks by the "Law Office of Garcia, James A."; Tricia Garcia is the storyboard artist for this episode.

AidanN
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