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21 Episodes 0 - 1997
Episode 0
14 mins
Arnold accidentally knocks out a bully named Harold during a baseball game, and Harold gives Arnold 24 hours to live before he beats him to a pulp.
Episode 1
Mon, Oct 7, 199624 mins
Downtown as Fruits: Arnold and Gerald are cast as fruits in Helga's play, but when they get tired of Helga bossing them around, they decide to blow off the play and end up lost downtown. Eugene's Bike: After Arnold accidentally ruins Eugene's new bike, he tries to make it up to him with a day of fun - which turns into a chain of accidents for Eugene.

Episode 2
Wed, Oct 9, 199624 mins
The Little Pink Book: Helga misplaces her diary, and it falls into the hands of Arnold. Arnold will stop at nothing to find out who owns the diary, and Helga will stop at nothing to get it back. Field Trip: On a field trip to the aquarium, Arnold can't wait to see Lockjaw, the infamous "terror of the deep." But Lockjaw turns out to be an old tortoise with a graffiti-covered shell--and he needs Arnold's help.
Episode 3
Mon, Oct 14, 199624 mins
Helga steals Arnold's hat to complete her secret shrine - a statue in the shape of his head made from Arnold-chewed bubble gum. Arnold feels like he is nothing without his hat, so Helga is planning to return it to him - until her mother throws it in the trash, which is on its way to the dump.
Episode 4
Wed, Oct 16, 199624 mins
Lipstick, hairspray, nail polish-Rhonda's birthday party is an all-girl affair, and that's why Helga isn't invited. But she's plotting revenge, and it's gonna make 'em run like cheap mascara.

Episode 5
Mon, Oct 21, 199624 mins
In '6th Grade Girls', Arnold and Gerald are invited to a school dance by two girls to make their boyfriends jealous. / In 'The Baseball', Mickey Kalin is Arnold's favorite player and is going to retire and Arnold wants to go to his last game.
Episode 6
Mon, Nov 4, 199624 mins
With fourteen beautiful inches of powdery snow, a blizzard has transformed Arnold's city into a winter play-land. But with the list of chores Grandpa has handed him, it could be July before he gets to play in it.
Episode 7
Wed, Oct 30, 199624 mins
Operation Ruthless: Helga finds out about Arnold's love for Ruth and his plan is to meet her at the Annual Cheese Fair, and Helga makes sure Ruth will never meet him, in a plan known as "Operation Ruthless". But her plan backfires as this only makes Arnold love Ruth more than ever. The Vacant Lot: Arnold and his friends clean up a dirty lot to play baseball on, but when the adults find the lot, they take it over and use it for their own reasons.
Episode 8
Wed, Nov 6, 199624 mins
Arnold's best laid plans for the "ultimate Saturday" go up in smoke when he tries to complete all of his favorite things to do in one afternoon. On a boring summer night Grandpa tries to liven things up by telling a story about haunted Train Number 25.
Episode 9
Mon, Nov 11, 199624 mins
Arnold learns the secrets of the martial arts from Grandma after getting held up for his bus pass. Grandpa takes Arnold and Gerald out to the woods to show them how to camp "the old fashioned way."
Episode 10
Wed, Nov 13, 199624 mins
Door 16: After a mysterious package is delivered at the boarding house, Arnold is entrusted to deliver the package to Mr. Smith, the most private boarder in the house. Unfortunately, the other boarders' curiosity is an obstacle Arnold must face. Arnold as Cupid: After Oskar and Suzie split up, Oskar lives with Arnold, and Arnold has to get them back together before Oskar drives him crazy.
Episode 11
Wed, Dec 11, 199625 mins
When Arnold receives Mr. Hyunh's name in the boarding house's annual Secret Santa draw, he decides to make it the most special Christmas ever for the lonely boarder, and tries to reunite Mr. Hyunh with his long-lost daughter. Meanwhile, Helga agonizes over what would make the perfect present for Arnold.
Episode 12
Wed, Oct 23, 199624 mins
Benchwarmer: Arnold, Gerald, Stinky, and Robert are on the YMMA's basketball team, and Coach Wittenberg teaches the team to always pass the ball to his son Tucker. Arnold teaches Tucker how to do free-throw shots, only to find he still hogs all the credit. Cool Jerk: Arnold makes friends with a cool older boy named Frankie G., but he soon discovers the real reason why this guy likes him so much.
Episode 13
Mon, Nov 18, 199624 mins
Arnold and the gang have no choice but to take the subway home after dark. / Arnold and the gang set out on a quest to find the hidden treasure of the mysterious "Wheezin' Ed" on Elk Island.
Episode 14
Mon, Oct 28, 199624 mins
Arnold is given the assignment to tutor Torvald, the meanest, toughest kid in Arnold's math class, for the big math test on Friday. Gerald convinces Arnold to allow him to spend the night at Arnold's house.
Episode 15
Wed, Nov 20, 199624 mins
The first episode is "Spelling Bee", It's time to crown the spelling champ of the whole city, and P.S. 118 has two contenders for the $500 prize. In one corner, Arnold. In the other, Helga. The second "Pigeon Man", Arnold's prized pigeon takes ill, and only one person can help-the creepy recluse Pigeon Man. But when Arnold visits him in his rooftop roost he find they're birds of a feather.
Episode 16
Mon, Nov 25, 199624 mins
When Helga's older sister, Olga, comes home from college and gets all of her parents' attention, Helga plots to sabotage her sister's visit. Arnold and Gerald save up cereal box tops to get a telescope before the arrival of Salley's Comet.
Episode 17
Wed, Nov 27, 199624 mins
Arnold's pet pig, Abner, escapes one night while Arnold is sleeping. When Arnold tries to bring Grandpa's pocket watch home from the repair shop, he accidentally drops it down a hole in the street, which leads him to a strange subterranean world.
Episode 18
Mon, Dec 23, 199624 mins
False Alarm: Eugene is suspected and accused of pulling the fire alarm, and it's up to a student jury to vote on the verdict, but Arnold's the only one who believes Eugene's totally innocent. World Records: Arnold and his friends attempt to get a world record and into a world records book.
Episode 19
Mon, Dec 9, 199624 mins
Magic Show: During Arnold's magic show, he makes Helga disappear by putting her in a box, but Helga sneaks out. After running into a post and knocking herself out, she has a dream that she really disappeared, and no one missed her. 24 Hours to Live: After Arnold accidentally hits Harold in the face with a baseball, Helga persuades Harold to wait until the next day to fight him. Meanwhile, Helga constantly reminds Arnold of how long he has to live.
Episode 20
Wed, Feb 12, 199724 mins
Arnold gets a visit from his French pen pal Cecille, who behind her French accent, seems strangely familiar.