Goof: In How the Cookie Crumbles one of the ingredients for the cookies was chocolate chips, however when the gang hand over the list to Muffy chocolate chips are omitted from the list.
Instead of getting another green scrunchie, Sue Ellen continues to wear the yellow one for the rest of the story.
From the back, the yellow scrunchie that Rubella gave Sue Ellen is green, like her other one.
In "Sue Ellen's Little Sister," everyone is seen with siblings: Both George and Fern have younger sisters and James has an older brother.
Elwood City has its annual Strawberry Festival in "How the Cookie Crumbles."
Arthur says a boy from Tibet is "3,000 miles away." Try 12,000 miles. The Plateau of Tibet is halfway around the world from Elwood City.
When Arthur and Francine were spying on D.W. while she is eating a bologna sandwich, Arthur says "Pal is eating the balo- Pal! Put that down!" On the Canadian network CBC, closed-captioning read "How is eating the- Ow! Put that down!"
In the episode "Arthur the Loser", Sue Ellen has a travel poster in her room that's supposed to say "EGYPT" only instead it says "EYGPT."
When everyone at the party goes "Surprise!" Mrs. McGrady's lips never move.
This is the beginning of Buster's trip with his dad and he won't return until the beginning of the 3rd season.
It's been established through several episodes that D.W.'s full name is Dora Winifred. So how can Dad shrug helplessly when the White House security guard asks her full name?
Brain says that he spent his summer teaching summer school, but schools wouldn't hire students, elementary school students at that, to teach other students.
D.W. says that Kate spoke her first word in this episode, but she learned to say "Brain" in "The Perfect Brother."
Haney Abuse Tracker: A couple times in "The Big Blow Up." Once when Francine and Brain argue over a plate of gelatin, it is flung backwards into the air and splats onto Mr. Haney's back. Twice during the mini golf scene when after a lamp post bulb destroys a windmill leaving the blade intact and the blade chases Mr. Haney away as he cries out in fear.
In "Arthur Versus the Piano," it is said that Arthur's music piece ends with a D-sharp. In reality, Fur Elise ends with A-sharp, and the "wrong note" Arthur hit was an A-flat, not a D-flat.
When Arthur says "Everybody ready to see Binky's widdle night wight?" the camera is shown in a wide angle and Binky's drawer beside the night light is brown, but in the next scene when everybody laughs at Binky's night light, the drawer has turned blue.
In "Arthur Makes A Movie" when Arthur was dressing up as James Hound, Francine brings him a red bowtie and Arthur complains "I can't wear that! I'll look like a clown!" Closed-captioning on CBC, however, reads "I can't wear that! I'll look like a hound!"
James Hound is rated PG-13, so Arthur could have gone with his dad, although I assume he only wants to see it alone. Also, Prunella says she saw the movie, but she's not 13. She's only 1 grade ahead of Arthur
Arthur says that James Hound's bowtie is black, but in the trailer his bowtie was red.
the first goof is not a goof. Arthur couldn't see the Movie because his parents said he couldn't see it.