Hey Arnold!
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The Aptitude Test / Oskar Gets a Job - S3-E9

Other mistake: Oskar Gets a Job: On the second day that Oskar forgets to do his job, Arnold reminds him that he has newspapers to deliver. After Oskar says, "You won't believe what happened," Arnold blinks, and his right eyelid is not colored in. (00:18:56)

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Hey Arnold! mistake picture

The Aptitude Test / Oskar Gets a Job - S3-E9

Other mistake: Oskar Gets a Job: In the beginning of the episode, Arnold and Gerald overhear Oskar arguing with a man in his room. In the close-up of Arnold and Gerald as Oskar says, "You're a big man, aren't you?", Arnold's right eyelid is not colored in. (00:12:17)

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Hey Arnold! mistake picture

Married - S5-E16

Revealing mistake: In Arnold's nightmare, when Bob points out that a stork is flying off their roof, his legs are incorrectly layered behind his cape. (00:12:50)

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Hey Arnold! mistake picture

Runaway Float / Partners - S2-E20

Other mistake: Runaway Float: After Bob says, "Now this float has to scream 'beeper' at the top of its lungs!", as he walks away from Arnold and Helga, Joey has white skin, blonde hair, and an orange shirt. (00:06:31)

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Helga's Masquerade / Mr. Green Runs - S5-E2

Continuity mistake: Helga's Masquerade: When Arnold compliments Lila's bows, she says, "In fact, I'm certain I wear them just, every old day." Ironically, her right bow disappears mid-shot, and it remains missing in the following shot. It comes back shortly after. (00:01:50)

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Monkeyman! / Buses, Bikes and Subways - S5-E1

Other mistake: Buses, Bikes and Subways: When Helga and Harold are running to catch the bus, as Harold says, "Ow, quit pulling my arm," Helga is frozen at the right side of the screen for a second before she starts moving. Also, her mouth doesn't move when she says, "The bus is leaving, you dumb oaf." (00:13:59 - 00:14:53)

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Save The Tree / New Teacher - S2-E1

Audio problem: New Teacher: When Helga gives directions to the kids to prank Mr. Simmons, she says, "Everyone know the drill?" and they all put their hands in. Arnold can be heard saying, "Alright," but he was never present in the scene. (00:13:47)

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Runaway Float / Partners - S2-E20

Other mistake: Runaway Float: When Arnold tears apart the big beeper on the parade float, the float's platform is missing, which makes it look like Bob and Nick are on the road. This happens again after Arnold stops the float, which makes it look like Bob and Nick are floating as a result. (00:10:19)

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Magic Show / 24 Hours to Live - S1-E18

Audio problem: Magic Show: During Arnold's magic show, the kids start chanting, "Make Helga disappear!" When Helga says, "Alright you bunch of clods," they stop, but their voices can still briefly be heard. (00:03:28)

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Helga: Move it, football head!

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The List/Haunted Train - S1-E8

Question: Why did that boy steal Arnold's ball? Was that the whole reason he came to the park? He seemed awfully obnoxious and destined to ruin Arnold's day, just wanting more clarity. Thank you.

Answer: The episode doesn't really elaborate on who the kid was and what his motives were, so its pure speculation as to why he took it. Perhaps the kid could simply want a ball all for himself and decided to just take it, or was simply a rotten kid. The truth is the kid's motives are not important to the story other than it highlights Arnold was having a lot of trouble getting through the list.

Lummie

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