The daily life of Arnold--a fourth-grader with a wild imagination, street smarts and a head shaped like a football.
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see all options Availability data: JustWatch
- Seasons
- 5
- Episodes aired
- 186
- Latest aired
- S05E41
- Total runtime
- 1d 13h
Timeline when each season aired
- Season 1 October 1996 – February 1997 38 episodes
- Season 2 September 1997 – December 1997 37 episodes
- Season 3 August 1998 – March 1999 38 episodes
- Season 4 March 1999 – December 1999 31 episodes
- Season 5 April 2000 – June 2004 42 episodes
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S04E01 Full Moon
March 10 · 11min find the promo
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Harold, Sid, and Stinky all moon Principal Wartz, but Arnold is blamed, even though he was just an innocent bystander.
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S04E02 Student Teacher
March 10 · 11min find the promo
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Helga's sister Olga comes home for spring break and becomes a classroom aid in Helga's class, much to Helga's chagrin.
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S04E03 Big Gino
March 15 · 11min find the promo
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After Sid works off a debt with loan shark Big Gino, the two become friends, but when Sid is told to give Arnold a swirlie, he has to choose between the two.
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S04E04 Jamie O in Love
March 15 · 11min find the promo
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Gerald's older brother Jamie O has a sudden burst of kindness when he finds a girlfriend, but Arnold and Gerald soon find out that the girl is just using Jamie O.
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S04E05 Eugene's Birthday
March 17 · 11min find the promo
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After losing Eugene's birthday party invitations, Arnold feels obliged to throw him another party, but it doesn't work out.
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S04E06 Stinky's Pumpkin
March 17 · 11min find the promo
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Stinky grows a huge pumpkin to enter in a city competition.
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S04E07 The Beeper Queen
March 29 · 11min find the promo
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After Bob pops his spine, Miriam runs Big Bob's Beepers. She gets in over her head and forgets about her family.
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S04E08 Oskar Can't Read?
March 29 · 11min find the promo
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Arnold finds out that Oskar is illiterate and tries to teach him to read.
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S04E09 Dinner for Four
March 31 · 11min find the promo
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Helga wants to show Arnold that she can be as sophisticated as Lila is by taking him, Gerald, and Phoebe out to dinner with a coupon she won. She devises a plan to get out of paying when she discovers they're at the wrong restaurant.
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S04E10 Phoebe Skips
March 31 · 11min find the promo
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Phoebe is promoted to the sixth grade, but realizes that her new so-called "friends" are just using her to do their homework.
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S04E11 Helga's Parrot
April 5 · 11min find the promo
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A sleep-talking Helga confides into Bob's parrot about her love for Arnold. The next day, the parrot flies into Arnold's window, and it is up to Helga to get it.
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S04E12 Chocolate Turtles
April 5 · 11min find the promo
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Crisis strikes when Gerald's little sister, Timberly, eats a stock of chocolate turtles that he and Arnold are supposed to sell for a local scout organization.
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S04E13 Love and Cheese
April 7 · 11min find the promo
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Helga tries to separate Arnold from Lila while at the annual Cheese Fair.
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S04E14 Weighing Harold
April 7 · 11min find the promo
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Harold, after discovering his friends think he is obese, decides to go on a weight-loss cruise. When he comes back, though, he is noticeably larger.
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S04E15 Back to School
September 11 · 11min find the promo
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After Grandpa tells Arnold that he never got his grade school diploma, Arnold convinces him to come to go back to school at P.S. 118.
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S04E16 Egg Story
September 11 · 11min find the promo
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Arnold and Helga must care for an egg for a school project about parenting. Meanwhile, Rhonda and Harold are project partners and must also take care of an egg.
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S04E17 It Girl
September 18 · 11min find the promo
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Helga becomes a model, but she quits after she gets irritated at everyone dressing like her.
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S04E18 Deconstructing Arnold
September 18 · 11min find the promo
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Arnold's classmates are tired of constantly telling them the right thing to do, so he stops giving them advice. Nevertheless, when his classmates get into sticky situations, they are in desperate need of his advice.
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S04E19 Grudge Match
September 25 · 11min find the promo
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After getting in a car accident, Bob and Grandpa face off on the golf green, with the loser having to pay for the damage to both cars.
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S04E20 Polishing Rhonda
September 25 · 11min find the promo
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Rhonda attends a finishing school, but is far from impressive with her stroppy attitude, and seeks help from fellow student Big Patty.
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S04E21 Weird Cousin
October 9 · 11min find the promo
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Arnold's bland country cousin, Arnie, comes to visit. Arnold begins to notice that Arnie and Lila show interest in each other, making him jealous.
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S04E22 Baby Oskar
October 9 · 11min find the promo
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Oskar has to take care of his infant cousin-in-law (also named Oskar), while both Susie and her cousin are gone.
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S04E23 Grandpa's Sister
October 16 · 11min find the promo
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Phil's twin sister comes for a visit, bringing along an unsettled conflict between them.
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S04E24 Synchronized Swimming
October 16 · 11min find the promo
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Arnold and the gang are part of a synchronized swimming team led by Coach Wittenburg.
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S04E25 Helga Sleepwalks
October 23 · 11min find the promo
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After eating pork rinds, Helga sleepwalks, uttering her secret about Arnold as she does so.
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S04E26 Fighting Families
October 23 · 11min find the promo
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Arnold, Grandpa, Grandma, Ernie, and Mr. Hyunh compete on a game show against a "perfect" family from PS 119
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S04E27 Headless Cabbie
October 30 · 11min find the promo
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Arnold tells an urban legend about a decapitated taxi driver. The gang goes out, only to find the details in the story are becoming real.
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S04E28 Friday the 13th
October 30 · 11min find the promo
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Arnold and Gerald try to prove superstitions are fictitious, only for it all to backfire on them.
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S04E29 Veterans Day
November 6 · 23min find the promo
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Arnold's Grandpa recalls his adventures as a soldier in the Second World War, outwitting a regiment of Nazis, while Gerald's dad, Martin, remembers his own time serving in Vietnam.
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S04E30 Helga on the Couch
December 4 · 23min find the promo
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Helga confides in the school psychiatrist about her social life, family life, and her love for Arnold.
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S04E31 Dino Checks Out
December 11 · 23min find the promo
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Dino Spumoni is found missing and then declared dead after what appears to be a suicide attempt. but Arnold finds out that this isn't the case, and he secretly lives in the boarding house, believing that his work will skyrocket in value after his "death".