*To play these episodes, it is recommended that you use the VLC Media Player. This will sort out any audio missing/video malfunctions and problems, and is a very good, virus-free program. To stream online, you need adobe flash which you can download off their website. (.asf files are not streamable online.)
 Hey Arnold Pilot The original pilot, which was released by Paramount Pictures and Nick Movies on July 10, 1996, in theaters with Nickelodeon's first feature-length movie, Harriet the Spy. It was later remade into the episode "24 Hours to Live" which was aired on March 7, 1997. The pilot episode wasn't seen again until March 2009 when it was uploaded to YouTube. |  Downtown as Fruits and Eugene's Bike Downtown as Fruits: The first episode. Arnold and Gerald decide to take the bus a few too many stops past the school and end up downtown without money – until someone drives by and throws them a bag of cash. |
 The List and Haunted Train The List: Arnold attempts to do everything on "The List For A Kid's Perfect Saturday", but everything goes wrong. |  Operation Ruthless and The Vacant Lot Operation Ruthless: While the "Cheese Festival" is in town, Helga attempts to eliminate Arnold's interest in Ruth, a sixth grade girl he likes. |
 6th Grade Girls and The Baseball 6th Grade Girls: Having met Connie and Maria, girls in the 6th grade, Arnold and Gerald, passing themselves off as 6th graders, attend a 6th grade dance. |  Benchwarmer and Cool Jerk Benchwarmer: Arnold and the gang play on a basketball team, but their coach tells them to throw the ball to one person, his son, Tucker. |
 The Little Pink Book and Feild Trip The Little Pink Book: Helga's diary, full of poems and shrines about Arnold, falls into the wrong hands when Gerald finds it. |  Tutoring Torvald and Gerald Comes Over Tutoring Torvald: Arnold must tutor Torvald, a 13-year-old fourth grade bully in math. |
 Arnold's Hat and Stoop Kid Arnold's Hat: Helga must find Arnold's hat after stealing it but her mother has tossed it into the trash that is now on its way to the dump. |  Heat and Snow Heat: A heat wave has engulfed the city and Arnold and Gerald try to find ways to escape the heat. |
 Helga's Makeover and The Old Building Helga's Makeover: Due to her tomboyish nature, Helga is the only girl not invited to Rhonda's slumber party. Feeling left out she gives herself a makeover, and goes to it anyway. The Old Building: Arnold is caught in the middle when Grandma and Ernie argue about whether or not an old theater should be torn down. |  Mugged and Roughin' It Mugged: Arnold learns the secrets of self defense from his Grandma after getting held up by a thug. |
 Door #16 and Arnold as Cupid Door #16: Arnold is given a package, which is for the mysterious boarder Mr. Smith. Arnold as Cupid: After getting into an argument with Suzie, Oskar is kicked out of his room in the boarding house. |  Das Subway and Wheezin' Ed Das The Subway: The gang encounters trouble while traveling on the subway. |
 Spelling Bee and Pigeon Man Spelling Bee: Arnold competes in a Tri-City spelling bee to win money for a keyboard, but faces competition against Helga, who's being pushed by her father to win so she can follow in her sister's footsteps. |  Olga Comes Home and Sally's Comet Olga Comes Home: Jealous about her smart, talented, popular older sister Olga returning home from college, Helga fiendishly changes one of her grades from an A to B+, which sends Olga into a deep depression. |
 Abner Come Home and The Sewer King Abner Come Home: Abner, Arnold's beloved pet pig, runs out of the boarding house in the middle of the night. |  Magic Show and 24 hours to Live Magic Show: Arnold picks Helga for his disappearing act. |
 Arnold's Christmas Arnold's Christmas: Arnold tries to find Mr. Hyunh's daughter (who was separated from him during the final days of the Vietnam War) as he carries out his duty as Mr. Hyunh's secret Santa. Meanwhile, Helga must choose between a Christmas present for herself (Nancy Spumoni boots) and the perfect gift for Arnold. |  False Alarm and World Records False Alarm: Eugene is framed for pulling the fire alarm at school. Arnold interrogates his friends in a makeshift courtroom in the library to discover the real culprit. |
 Arnold's Valentine Arnold's Valentine: On Valentine's Day, Arnold manages to arrange two dates; one with Ruth, the sixth grader he likes, and one with his French penpal Cecile (actually, it's Helga in disguise) – only for the real Cecile to suddenly appear and Arnold to discover what Ruth is really like. |
 Save the Tree and New Teacher Save The Tree: Arnold and other 4th graders try to save their tree house from being torn down for a Big Bob's Beepers establishment. Download as .wmv |  Helga's Love Potion and Gerald's Secret Helga's Love Potion: Helga buys an "out-of-love" potion to cease her love for Arnold. Download as .wmv |
 The Big Scoop and Harold's Kitty The Big Scoop: The gang prints the school newspaper, but Helga is disappointed when Arnold refuses to spread rumors through it. She starts her own with the help of Phoebe, but it is based entirely on lies. Download as .wmv |  Longest Monday and Eugene's Pet Longest Monday: The 4th grade kids try to avoid getting thrown in dumpsters and trash cans as part of an annual ritual. Download as .wmv |
 Monkey Business and Big Caesar Monkey Business: Helga thinks she will die from a superstitious 19th century disease, monkeynucleosis, after coming into contact with a monkey. Download as .wmv |  Ransom and Ms. Perfect Ransom: Timberly's stuffed animal gets "kidnapped". Download as .wmv |
 Arnold Saves Sid and Hooky Arnold Saves Sid: When Arnold saves Sid from being "crushed" by a large sign, Sid decides to repay him by being his slave. Download as .wmv |  Freeze Frame and Pheobe Cheats Freeze Frame: Arnold and Gerald accidentally film a man putting a note in the hollow of a tree. Download as .wmv |
 Mud Bowl and Gerald Moves Out Mud Bowl: Wolfgang and the other fifth graders challenge Arnold and his friends to a football game. Download as .wmv |  The High Life and Best Friends The High Life: Gerald becomes an entrepreneur out of selling watches until the market becomes saturated. Download as .wmv |
 |  Steely Phil and Quantity Time Steely Phil: Arnold's Grandpa enters a Chinese Checkers tournament to reclaim his pride lost forty years ago. Download as .wmv |
 Eating Contest and Rhonda's Glasses Eating Contest: Arnold enters the city eating contest. Unfortunately, he must compete against the boy they call "The Disposal" Download as .wmv |  Helga's Boyfriend and Crush on a Teacher Helga's Boyfriend: Helga uses Stinky as her boyfriend to try and make Arnold jealous. Download as .wmv |
 Hall Monitor and Harold's Bar Mitzvah Hall Monitor: Phoebe becomes hall monitor and asks Helga for tips. Download as .wmv |  Coach Wittenberg and Four-eyed Jack Coach Wittenberg: Arnold and his friends get Coach Wittenberg to be their new bowling coach. |
 Eugene Goes Bad and What's Opera, Arnold? Eugene Goes Bad: After finding out that his idol is a haughty, primped actor, Eugene sets out to become bad. Download as .wmv |  Tour de Pond and Teacher's Strike Tour de Pond: Arnold and a descendant of his grandpa's arch enemy, Rex Smythe-Higgins, compete in a boat race. *Note: This episode was held back from the first season Download as .wmv |
 Runaway Float and Partners Runaway Float: After creating an idea for a parade float, Arnold is confident of it showing up in a parade. Download as .wmv |
 Helga Blabs It All and Harold the Butcher Helga Blabs It All: While under the influence of laughing gas at the dentist's office, Helga picks up the phone and confesses her love for Arnold. Download as .mp4: Helga Blabs It All and Harold the Butcher |  Dangerous Lumber and Mr. Hyunh Goes Country Dangerous Lumber: Arnold has a lethal baseball bat swing, causing him to unintentionally knock out other players. Download as .mp4 |
 Casa Paradiso and Gerald's Tonsils Casa Paradiso: When an irritated Grandpa Phil decides to sell the boarding house to go live in a condo, Arnold and the boarders try to get him to change his mind. Download as .mp4 |  Arnold's Room and Helga vs. Big Patty Arnold's Room: Sid pretends that Arnold's room is his room when he studies with Lorenzo, a rich classmate. Helga vs. Big Patty: Patty challenges Helga to a fight after Helga gets on her last nerves by picking on her once too many. Download as .mp4 |
 Stinky Goes Hollwood and Olga Gets Engaged Stinky Goes Hollywood: Stinky becomes the new Yahoo Soda poster child, but gives it up when it's revealed that he was hired as a joke. Olga Gets Engaged: Olga gets engaged to a con man who does not exactly woo Helga as he did the rest of her family.Download as .mp4: Stinky Goes Hollywood and Olga Gets Engaged |  Curly Snaps and Preteen Scream Curly Snaps: Curly locks himself in the principal's office after being skipped as the person who collects kick balls after recess. Preteen Scream: Phoebe wins a chance to meet her favorite singer, only to find out that he doesn't write or sing his own songs. Download as .mp4: Curly Snaps and Preteen Scream |
 Grandpa's Birthday and Road Trip Grandpa's Birthday: Grandpa thinks he's going to die when he turns 81 because of a "family curse". Road Trip: When Bob has to go to a buisness meeting, Miriam and Helga are forced to go on the family road trip by themselves. Download as .mp4 |  Sid's Revenge and Roller Coaster Sid's Revenge: Sid swears vengeance with a voodoo doll made out of a bar of soap carved into the form of Principal Wartz for giving him detention for a prank he didn't pull, and then believes that he killed him. Download as .mp4 |
 The Aptitude Test and Oskar Gets a Job The Aptitude Test: Helga thinks she's dim because she failed an aptitude test at school, only to discover she received Harold's test score, and vice versa. Download as .mp4: The Aptitude Test and Oskar Get a Job |  Arnold Betrays Iggy and Helga and the Nanny Arnold Betrays Iggy: Arnold accidentally finds out that Iggy wears pink bunny pajamas, and Iggy makes him promise not to tell. Download as .mp4: Arnold Betrays Iggy and Helga and the Nanny |
 Career Day and Hey Harold Career Day: Arnold gets paired with the bitter Jolly Olly Man as part of Career Day. Download as .mp4 |  Best Man and Cool Party Best Man: Coach Wittenburg assigns Arnold the duty of best man at his second wedding. Download as .mp4: Best Man and Cool Party |
 Arnold and Lila and Grand Prix Arnold & Lila: Arnold gets more attention than he bargained for from Lila after Helga writes "Arnold Loves Lila" on the wall, and Lila finds out about it. Download as .mp4: Arnold and Lila and Grand Prix |  Arnold's Thanksgiving Arnold's Thanksgiving: Arnold and Helga are sick of their families' Thanksgiving traditions. They meet and go to Mr. Simmons', only to realize that, compared to Thanksgiving with his family, theirs aren't so bad after all. Download as .mp4 |
 Helga's Show and The Flood Helga's Show: Helga tells jokes about her classmates, who take offense to it. Download as .mp4: Helga's Show and The Flood |  Part-Time Friends and Biosquare Part-Time Friends: Arnold is okay with working with Gerald at Mrs. Vitello's flower shop, but not with working for Gerald. Biosquare: As a science assignment, Arnold and Helga have to work together for 24 hours in the Sunset Arms greenhouse. *Note: This episode was held back from the first seasonDownload as .wmv |
 Phoebe Takes the Fall and The Pig War Phoebe Takes the Fall: Helga demands that Phoebe lose a quiz competition to impress her competitive father. Downloa as .mp4: Pheobe Takes the Fall and The Pig War |  Crabby Author and Rich Kid Crabby Author: Arnold does his school report on an author he likes, only to find out that she's a grumpy, old hag. Downloa as .mp4 |
 Girl Trouble and School Dance Girl Trouble: Arnold snaps at school after Helga tries his patience once too often. School Dance: Arnold is in charge of the school dance. He books has-been singer Dino Spumoni, and when he sings a depressing "good-bye" song, all fingers point at Arnold. Download as .mp4: Girl Trouble and School Dance |  |
 Parent's Day Parents Day: The kids all take part in the annual parent-child sports weekend, but Arnold feels left out and asks his grandfather about his real parents' whereabouts. *Note: This episode was held back until the fourth season |  Full Moon and Student Teacher Full Moon: Harold, Stinky and Sid decide to moon Principal Wartz, but Arnold gets the blame for it as an innocent bystander and refuses to reveal who really did it. Download as .mp4: Full Moon and Student Teacher |
 Big Gino and Jamie O. in Love Big Gino: 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. Download as .mp4: Big Gino and Jamie O. in Love |  Eugene's Birthday and Stinky's Pumpkin Eugene's Birthday: Arnold feels obliged to throw another birthday party for Eugene after losing the invitations. Stinky's Pumpkin: Stinky grows a huge pumpkin for the City-Wide Vegetable Fair. Download: Eugene's Birthday.mp4 and Stinky's Pumpkin.asf |
 The Beeper Queen and Oskar Can't Read? The Beeper Queen: After Bob pops his spine, Miriam runs Big Bob's Beepers. She gets in over her head and forgets about her family. Oskar Can't Read?: Arnold finds out that Oskar is illiterate and tries to teach him to read. Download as .wmv |  Dinner for Four and Phoebe Skips Dinner for Four: 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. Download as .mp4: Dinner for Four and Pheobe Skips |
 Helga's Parrot and Chocolate Turtles Helga's Parrot: 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. Download as .wmv |  Love and Cheese and Weighing Harold Love and Cheese: Helga tries to separate Arnold from Lila while at the annual Cheese Fair. Download as .wmv |
 Back to School and Egg Story Back to School: 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. Download as .mp4 |  It Girl and Deconstructing Arnold It Girl: Helga becomes a model, but she quits after she gets irritated at everyone dressing like her. Download as .mp4 |
 Grudge Match and Polishing Rhonda Grudge Match: 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. Polishing Rhonda: Rhonda attends a finishing school, but is far from impressive with her stroppy attitude, and seeks help from fellow student Big Patty.Download as .mp4: Grudge Match and Polishing Rhonda |  Weird Cousin and Baby Oskar Weird Cousin: 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. Baby Oskar: Oskar has to take care of a baby while Susie and her friend are gone.Download as .mp4: Weird Cousin and Baby Oskar |
 Grandpa's Sister and Synchronized Swimming Grandpa's Sister: Phil's sister (voiced by Phyllis Diller) comes for a visit, bringing along an unsettled conflict between them. Synchronized Swimming: Arnold and the gang are part of a synchronized swimming team led by Coach Wittenburg. |  Helga Sleepwalks and Fighting Families Helga Sleepwalks: After eating pork rinds, Helga sleepwalks, uttering her secret about Arnold as she does so. Fighting Families: Arnold, Grandpa, Grandma, Ernie, and Mr. Hyunh compete on a game show against a "perfect" family from PS 119(Guest starring: Ryan Seacrest) |
 Headless Cabbies and Friday the 13th Headless Cabbie: Arnold tells an urban legend about a decapitated taxi driver. Friday the 13th: Arnold and Gerald try to prove superstitions are fictitious, only for it all to backfire on them. |  Veteran's Day Veterans Day: Arnold's Grandpa recalls his adventures as a soldier in World War 2 beating up Hitler personally, with Gerald's dad, Martin, who remembers his own time fighting in Vietnam. |
 Helga on the Couch Helga on the Couch: Helga confides in the school psychiatrist about her social life, family life, and her love for Arnold. (Guest starring Kathy Baker) |  Dino Checks Out Dino Checks Out: Dino Spumoni is found missing and then declared dead after what appears to be a suicide attempt. However, 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". |
 Monkeyman! and Buses, Bikes, and Subways Monkeyman!: Arnold meets a vigilante named Monkeyman after he saves him from criminals. He introduces him into normal life, with devastating effects as he abdicates his usual duties. Buses, Bikes, and Subways: While on a field trip to a chocolate factory, Helga and Harold get left behind and must work together to find a way home. |  Helga's Masquerade and Mr. Green Runs Helga's Masquerade: Helga decides to act and dress like Lila in a bid to win Arnold's attention. Mr. Green Runs: Mr. Green decides to run for councilman after tiring of rival Councilman Gladhand's laziness. |
 Sid the Vampire Slayer and Big Sis Sid the Vampire Slayer: After watching a horror film, Sid thinks that Stinky is really a vampire. Big Sis: A sibling program lets Olga be an older sister figure for Lila, much to Helga's irritation and jealousy. |  Bag of Money and Principal Simmons Bag of Money: Sid, Gerald, and Arnold find a bag of money in an alley. When Arnold loses it to a strange woman, he is suspected of taking the money himself. Gerald is the only one who believes him.Principal Simmons: Mr. Simmons becomes principal after Principal Wartz has one too many outbursts. |
 New Bully on the Block and Pheobe Breaks a Leg New Bully on the Block: A new bully arrives, who fights with Arnold and Wolfgang over the vacant lot. Phoebe Breaks a Leg: Phoebe breaks her leg after being hit by a bus while running errands for Helga, who feels horrible and attends to her every whim. She likes the attention and pretends to be injured a little while longer. |  Helga's Locket and Sid and Germs Helga's Locket: Helga gets an inscription about Arnold inside her Arnold locket, but has it stolen by his pet pig Abner, forcing her to yet again infiltrate the boarding house to retrieve it. Sid and Germs: After seeing a movie about germs in school, Sid becomes obsessed with cleanliness, just in time for the frog-catching contest against the 5th Grade. |
 Suspended: Harold hates school so much that he deliberately gets himself suspended. Ernie in Love: Ernie meets a plus-sized woman, but feels insecure that one like her would be interested in a man like him. |  Summer Love: Arnold goes on vacation to the beach with his grandparents and the other boarders, intending to get away from Helga who, as usual, has been harassing him. Much to both of their surprises, Helga and her parents are also there. |
 Beaned: Helga is knocked unconscious when a baseball strikes her on the head and gets amnesia. Old Iron Man: Grandpa Phil's old friend (Jimmy Kafka) comes to the boarding house for a visit. |  Stuck in a Tree: Arnold and Harold get stuck in a tree with Eugene when they try to help him get down from it. Rhonda Goes Broke: When Rhonda and her parents suddenly become poor, they are forced to move into Arnold's boarding house. |
 Arnold Visits Arnie: Arnold is going to visit his weird cousin, Arnie and dreams that there are a bunch of character look-a-likes.
Chocolate Boy: Wolfgang dares Chocolate Boy to quit his obsession of chocolate for a week. |  Harold vs. Patty: Harold becomes humiliated when he loses to Big Patty in an arm wrestling match. Rich Guy: Arnold tries to get a rich entrepreneur and his son to bond together. |
 Gerald's Game: Gerald becomes addicted to a role-playing card game, which strains his friendship with Arnold. Fishing Trip: The boys and their fathers get into all sorts of mishaps while on a fishing trip. Davy Jones guest-stars as himself. |  On the Lam: Harold, Sid, and Stinky hide from the law after thinking they blew up the police station. Family Man: Mr. Hyunh wants to be the new head chef at the restaurant he works for. |
 The Racing Mule: Oskar, Ernie, and Mr. Hyunh train a horse to win a race, along with help from Arnold. Curly's Girl: Rhonda's mother's coat gets dirtied. Curly offers to clean it for her in his parents' dry cleaning store on one condition: They agree to, publicly, be a couple, much to her disgust. |  Timberly Loves Arnold: Gerald's little sister Timberly falls for Arnold after playing in the park. He uses her as a way of getting Lila's attention. Eugene, Eugene!: Arnold and his friends take part in the musical Eugene, Eugene. Eugene, who gets the lead role, is outraged when the ending of the play is altered, and he and Arnold conspire to restore the play back to its original ending. |
 Ghost Bride: After Gerald's urban tale, the kids go looking for a murderous ghost whose fiancé left her at the altar. They look for her in a cemetery, but Helga and Curly both have other ideas. Gerald vs. Jamie O: Gerald acquires a crush on his new neighbor, Chloe. It turns out that she only spends time with him to see his brother, Jamie O. |  A Day in the Life of a Classroom: A film crew shoots a documentary of Mr. Simmons' class to be screened on TV, but he feels that they should follow a script, rather than be spontaneous. Big Bob's Crisis: Bob becomes brainwashed by a cult, and he and his family live without material possessions, much to Helga's horror. *The episode A Day in the Life of a Classroom is also known as Simmons' Documentary. |
 Grandpa's Packard: When Grandpa's beloved Packard is stolen when it wins a car contest, it is up to Arnold and Grandma to find the thief. Phoebe's Little Problem: Phoebe is ashamed after she farts into a microphone in front of the whole school. |  Married: Arnold and Helga are paired together by Rhonda's origami marriage predictor. They both dream that night what it would be like if they were married. The episode is noticeable as perhaps being the best evidence of his own suppressed affection for her, as she nearly confesses her love for him in his own dreams. |
 April Fools Day: After being the victim of many of Helga's April Fools pranks, Arnold gets revenge. |  The Journal: Arnold finds a diary and map that belonged to his parents, which shows their possible current location. This episode is the un-intentional finale, due to the fact the Jungle Movie was never made. |
