List of Hey Arnold! episodes

WP:GOLDLOCK

This is a complete list of episodes for the animated television series Hey Arnold!. The series originally aired from 1996 to 2004 on Nickelodeon. It has stopped airing in reruns on the channel as of 2009, but reruns can now be found on Nickelodeon's sister network TeenNick on the channel's late-night television block The '90s Are All That.

Series overview

Season		# of episodes	Season premiere	Season finale	DVD release
	1	20	October 7, 1996	February 10, 1997	August 9, 2012
	2	19	September 21, 1997	January 19, 1998	March 20, 2012 (Part 1) July 24, 2012 (Part 2)
	3	20	August 31, 1998	March 8, 1999	January 29, 2013
	4	17	March 10, 1999	December 11, 1999	May 14, 2013
	5	24	March 4, 2000	June 8, 2004	TBA

Episode list

Go to References, and see [[]] for original airdates.

Season 1 (1996-97)

Ep#	Total	Title	Original airdate	Prod. code
1	1	"Downtown as Fruits / Eugene's Bike"	October 7, 1996 (1996-10-07)	1.01
Downtown as Fruits: Not looking forward to performing in Helga's "The Four Food Groups" musical, Arnold and Gerald decide to take the bus a few stops too many, but end up stuck downtown. Eugene's Bike: When Arnold accidentally ruins Eugene's new bike, he takes Eugene out on a day of fun, thinking that "every geek deserves his day."
2	2	"The List / Haunted Train"	November 25, 1996 (1996-11-25)	1.08
The List: Arnold attempts to do something that no other kid has done before - completing the entire list of a kid's perfect Saturday! But, unfortunately, things don't go quite to plan. Haunted Train: When the kids complain of being bored, Grandpa tells the story of the Haunted Train. So, the kids decide to go and see if the train exists for themselves.
3	3	"Operation Ruthless / The Vacant Lot"	November 18, 1996 (1996-11-18)	1.07
Operation Ruthless: While at the annual Cheese Fair, Helga tries to destroy Ruth McDougal, a sixth grader whom Arnold has a crush on. The Vacant Lot: When Arnold and his friends find a vacant lot, they clean it and turn it into their own baseball field. But when the adults see the lot whilst the kids are away from it, they take it over for their own uses.
4	4	"6th Grade Girls / The Baseball"	November 4, 1996 (1996-11-04)	1.05
6th Grade Girls: Connie and Maria, girls in the sixth grade, invite Arnold and Gerald to their school dance. What Arnold and Gerald don't know, though, is that the girls are using them to make their boyfriends jealous. The Baseball: When Arnold discovers that his favorite baseball player, Mickey Kaline, is retiring after one final game, he and Gerald go see the game only to get bad seats. But, when Mickey hits his last home run, Arnold catches the ball.
5	5	"Benchwarmer / Cool Jerk"	December 16, 1996 (1996-12-16)	1.11
Benchwarmer: Arnold and the gang play on a basketball team, but their coach tells them to only throw the ball to his son, Tucker. Cool Jerk: A cool older boy named Frankie G. befriends Arnold, but Arnold soon realizes that Frankie G. and his gang are criminals.
6	6	"The Little Pink Book / Field Trip"	October 9, 1996 (1996-10-09)	1.02
The Little Pink Book: Helga's diary, full of poems and shrines about Arnold, falls into the wrong hands when Gerald finds it. Gerald leaves it in Arnold's room, and it is up to Helga to get it back. Field Trip: While on a class field trip to the aquarium, Arnold sees Lock Jaw, an old, neglected, graffiti-covered turtle. Arnold feels sorry for Lock Jaw, so, that night, he and Grandma take him to the ocean and set him free.
7	7	"Tutoring Torvald / Gerald Comes Over"	December 30, 1996 (1996-12-30)	1.13
Tutoring Torvald: Arnold must tutor a 13-year-old fourth grade bully in math. Gerald Comes Over: Gerald visits Arnold's boarding house and meets the eccentric boarders.
8	8	"Arnold's Hat / Stoop Kid"	October 14, 1996 (1996-10-14)	1.03
Arnold's Hat: Helga steals Arnold's hat to complete her secret shrine – a statue in the shape of his head made from Arnold-chewed bubble gum – but he feels he's lost a part of himself. In order for Helga to fix the problem, she has to get the hat, which her mother tossed into the trash that is now on its way to the dump. Stoop Kid: While playing football on the street, Arnold kicks the ball and it ends up on Stoop Kid's stoop. According to Gerald, Stoop Kid is a boy who has been living on that particular stoop ever since he was born. Arnold tries to wait for him to leave so he can get his football back, but learns that he never leaves his stoop. Faced with this fact, he tries to convince Stoop Kid to overcome his habit by taking a step off the stoop.
9	9	"Heat / Snow"	November 11, 1996 (1996-11-11)	1.06
Heat: A heat wave engulfs the city; Arnold and Gerald try to find ways to escape the heat. Snow: A snowstorm comes to the city. Arnold's Grandpa tries to teach him work ethic while his friends play without him.
10	10	"Helga's Makeover / The Old Building"	October 16, 1996 (1996-10-16)	1.04
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 an old theater should be torn down or not.
11	11	"Mugged / Roughin' It"	December 2, 1996 (1996-12-02)	1.09
Mugged: Arnold learns the secrets of self defense from his Grandma after getting held up by a thug. Roughin' It: Grandpa takes Arnold and Gerald on a weekend camping trip. As they set up the campsite, Bob, Helga, and Phoebe show up in a high-tech RV to rough it as well. Then, as everyone hikes up a mountain trail while exploring the great outdoors, they get lost in the wilderness. Arnold and Gerald agree to help everyone find their way back to their campsite by using Grandpa's survival tips.
12	12	"Door #16 / Arnold as Cupid"	December 9, 1996 (1996-12-09)	1.10
Door #16: Arnold is given a package, which is for the mysterious Mr. Smith. Meanwhile, all of the boarders become curious about figuring out what is contained in it. Now, Arnold and Gerald try to make a safe delivery while searching all over town for Mr. Smith so they can give it to him. Arnold as Cupid: After getting into an argument with Suzie, Oskar is kicked out of his room in the boarding house. Feeling rejected by her, he tries to find a new room to sleep in, but no one agrees to it. Then, with no other option, he decides to move into Arnold's room. Soon, Arnold becomes tired of Oskar sleeping in his room, so Arnold plays cupid to try to string Oskar and Suzie's relationship together again.
13	13	"Das Subway / Wheezin' Ed"	December 13, 1996 (1996-12-13)	1.12
The Subway: The gang encounters trouble while traveling on the subway. Wheezin' Ed: The gang travels to Elk Island to find a pirate treasure said to be haunted by a gangster with a breathing problem.
14	14	"Spelling Bee / Pigeon Man"	January 6, 1997 (1997-01-06)	1.14
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. Pigeon Man: Arnold confronts a man that has known and trusted pigeons all his life after one of his gets sick.
15	15	"Olga Comes Home / Sally's Comet"	January 13, 1997 (1997-01-13)	1.15
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. Sally's Comet: Arnold and Gerald mail in cereal box tops to receive a telescope so they can see the well-known interstellar event known as Sally's Comet. The problem is that it's too bright for them to see the stars. Now they try to convince everybody in the city to turn off their lights.
16	16	"Abner Come Home / The Sewer King"	January 20, 1997 (1997-01-20)	1.16
Abner Come Home: Abner, Arnold's beloved pet pig, sees a cat out the window and he runs out of the boarding house to chase it, which leads to him running far away from home. The next morning, Arnold wakes up to realize that Abner is gone. Later, he announces a search party so everyone can help find Abner before something bad happens to him. The Sewer King: While Arnold goes out to bring Grandpa his golden watch back from the store, he sees a gigantic hole being dug for new sewer pipes at a construction site. As he looks down it, the watch falls out of his pocket and into the sewer. Now, Arnold and Gerald must go down there to retrieve it, only to find that it's in possession of the Sewer King.
17	17	"Magic Show / 24 Hours to Live"	February 3, 1997 (1997-02-03)	1.18
Magic Show: Arnold picks Helga for his disappearing act, but when Helga decides to run off to trick Arnold, she knocks herself out and dreams of a world where no one misses her now that she's gone. 24 Hours to Live: In this remake of the original pilot (which never aired on TV), Arnold accidentally knocks Harold out during a baseball game, and the bully gives Arnold 24 hours to live before he beats him to a pulp.
18	18	"Arnold's Christmas"	December 14, 1996 (1996-12-14)	1.20
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.
19	19	"False Alarm / World Records"	January 27, 1997 (1997-01-27)	1.17
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 (Which in the end it was Curly who did it). World Records: Arnold and his friends try to get into the Guinness Book of Records.
20	20	"Arnold's Valentine"	February 10, 1997 (1997-02-10)	2.25
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.

Season 2 (1997-98)

Ep#	Total	Title	Original airdate	Prod. code
1	21	"Save the Tree / New Teacher"	September 21, 1997	2.38
Save The Tree: Arnold and the gang must stop Big Bob from chopping down the oldest tree in town. New Teacher: When the kids make their new teacher, Mr. Simmons, quit his job, the replacement makes them realize what they lost.
2	22	"Helga's Love Potion / Gerald's Secret"	September 28, 1997	2.35
Helga's Love Potion: Helga drinks a potion to lose all feelings for Arnold. Gerald's Secret: Gerald's secret is revealed; he doesn't know how to ride a bike, so Arnold teaches him how.
3	23	"The Big Scoop / Harold's Kitty"	October 5, 1997	2.27
The Big Scoop: Arnold and Gerald compete against Helga in the school newspaper, but they find out that Helga is adding fake information for her newspaper. Harold's Kitty: When Harold is walking in the street, he finds a kitty that belongs to an old lady and he takes it, but then everybody appears, and Harold has to surrender the kitty to the old lady.
4	24	"Longest Monday / Eugene's Pet"	October 12, 1997	2.32
Longest Monday: Schoolyard tradition has it that on the first Monday of June each year, the fifth graders throw the fourth graders into trash cans. So, Arnold and Gerald try to make a run for it. As more people are thrown into trash cans and the fifth graders know all the routes, Arnold and Gerald find out eluding the fifth graders is harder that they thought. Eugene's Pet: After Arnold accidentally kills Eugene's fish with a yo-yo, he must do something to make up for it.
5	25	"Monkey Business / Big Caesar"	October 19, 1997	2.30
Monkey Business: An organ grinder's monkey kisses Helga, who is convinced she has caught "monkeynucleosis". Big Caesar: Arnold and Gerald do a spot of fishing, determined to catch the pond's biggest fish, the legendary "Big Caesar".
6	26	"Ransom / Ms. Perfect"	October 26, 1997	2.29
Ransom: Gerald and Arnold get on the case when Timberly's doll goes missing. Ms. Perfect: The new girl is teased at school by Helga and the other girls, but she's soon accepted by everyone.
7	27	"Arnold Saves Sid / Hookey"	November 2, 1997	2.28
Arnold Saves Sid: After Arnold saves Sid from an injury, Sid devotes himself to paying Arnold back with unending kindness. Hooky: Arnold and Gerald bunk off school, but their day is ruined by their fear of being found out.
8	28	"Freeze Frame / Phoebe Cheats"	November 9, 1997	2.34
Freeze Frame: Arnold and Gerald go around the city following "Porkpie", a mysterious man caught on film. They suspect, because of the clues, that Porkpie are planning to kill "Marty", who turns out to be Mr. Green. Phoebe Cheats: In this variation of "The Tell-Tale Heart", Phoebe plagiarizes from a poetry book and uses one of the poems as her entry in a poetry contest. She wins, with her prize being a trophy resembling poet Emily Dickinson. Then, the trophy haunts Phoebe into confessing.
9	29	"Mud Bowl / Gerald Moves Out"	November 16, 1997	2.33
Mud Bowl: Wolfgang and his gang of fifth graders challenge Arnold and his friends to a football game, but he has to first persuade them that his plays are good enough for them to win. Gerald Moves Out: Gerald, getting tired of his family bugging him, moves out of his home and into Arnold's boarding house, only to realize emancipation is not all it is cracked up to be.
10	30	"The High Life / Best Friends"	November 23, 1997	2.31
The High Life: Gerald becomes an entrepreneur out of selling watches until the market becomes saturated. Best Friends: Rhonda and Nadine fall out over working on a project at school, leaving Arnold to work with both of them separately.
11	31	"Arnold's Halloween"	October 27, 1997	2.40
This episode is a parody of the panic caused by Orson Welles' adaptation of "The War of the Worlds". The whole city mistakes a Halloween prank set up by Arnold and Gerald as an actual alien invasion.
12	32	"Steely Phil / Quantity Time"	November 30, 1997	2.36
Steely Phil: Arnold's Grandpa enters a Chinese Checkers tournament to reclaim his pride lost forty years ago. Robby Fisher's name is a parody of Bobby Fischer. Quantity Time: Helga's mother tries to let her and her father, Bob, bond.
13	33	"Eating Contest / Rhonda's Glasses"	December 7, 1997	2.37
Eating Contest: Arnold enters an eating contest. Rhonda's Glasses: Rhonda gets glasses and finds out what it is like to be a "Geek".
14	34	"Helga's Boyfriend / Crush on Teacher"	December 14, 1997	2.21
Helga's Boyfriend: Helga uses Stinky as her boyfriend to try and make Arnold jealous. Crush on Teacher: Arnold develops a crush on Miss Felter, a substitute teacher, thinking he is having dinner at her house, only to realize otherwise.
15	35	"Hall Monitor / Harold's Bar Mitzvah"	December 21, 1997	2.22
Hall Monitor: Phoebe becomes hall monitor and asks Helga for tips. She becomes overwhelmed by the "power" and soon everyone wants the old Phoebe back, even Helga once she realizes Phoebe's also giving her detentions. Harold's Bar Mitzvah: Harold runs away from his Bar Mitzvah, thinking he will retain his childhood this way.
16	36	"Coach Wittenberg / Four-Eyed Jack"	December 28, 1997	2.23
Coach Wittenberg: Arnold and his friends get Coach Wittenberg to be their new bowling coach. Four-eyed Jack: The ghost of a former boarding house resident is believed to have been causing strange occurrences in there when Arnold and Gerald find an old pair of glasses believing to have belonged to him.
17	37	"Eugene Goes Bad / What's Opera, Arnold?"	January 4, 1998	2.39
Eugene Goes Bad: After finding out that his idol is a haughty, primped actor, Eugene sets out to become bad. What's Opera, Arnold?: Helga and Arnold fall asleep and have their own "parody/dream" of the opera Carmen.
18	38	"Tour de Pond / Teachers Strike"	January 11, 1998	2.24
Tour de Pond: Arnold and a descendant of his grandpa's arch enemy, Rex Smythe-Higgins, compete in a boat race. Teachers Strike: Teachers of Arnold's school go on strike because of inadequate funding; He and his friends are on cloud nine, only to find out that every lost school day will be taken from their summer vacation.
19	39	"Runaway Float / Partners"	January 19, 1998	2.26
Runaway Float: After creating an idea for a parade float, Arnold is confident of it showing up in a parade. Partners: A lounge singer moves into the Sunset Arms after renouncing his songwriter, who also moves there.

Season 3 (1998-99)

Ep#	Total	Title	Original airdate	Prod. code
1	40	"Helga Blabs It All / Harold the Butcher"	August 31, 1998	3.45
Helga Blabs It All: While under the influence of laughing gas, Helga leaves a message on Arnold's answering machine confessing her love for him. When she finally comes to, she realizes that she has to get to Arnold's answering machine and delete the message before he can hear it, but the task will prove hard. Harold the Butcher: As punishment for shoplifting a ham, Harold is forced to work for Mr. Green at his butcher shop. Later, after his work shift to pay for it is over, he soon learns that he actually likes his new after-school job and doesn't want to stop working there, much to the dismay of Mr. Green (at least at first).
2	41	"Dangerous Lumber / Mr. Hyunh Goes Country"	September 2, 1998	3.47
Dangerous Lumber: Arnold has a lethal baseball bat swing, causing him to unintentionally knock out other players, so he decides never to play the sport again, mere days before a baseball game against the fifth graders. Mr. Hyunh Goes Country: Mr. Hyunh has a talent for country singing, so Arnold and Gerald, after recording a CD with him at the local studio, become his managers and make him a big star, much to his dislike. (Guest voice: Randy Travis)
3	42	"Casa Paradiso / Gerald's Tonsils"	September 7, 1998	3.50
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. Gerald's Tonsils: Gerald's voice is deepened after having his tonsils out, just a few days before the school recital.
4	43	"Arnold's Room / Helga vs. Big Patty"	September 9, 1998	3.48
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.
5	44	"Stinky Goes Hollywood / Olga Gets Engaged"	September 16, 1998	3.43
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, but she decides to let the marriage happen so Olga can be miserable. But she is given a change of heart from Arnold, and attempts to stop it.
6	45	"Curly Snaps / Preteen Scream"	September 23, 1998	3.42
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.
7	46	"Grandpa's Birthday / Road Trip"	September 30, 1998	3.54
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.
8	47	"Sid's Revenge / Roller Coaster"	October 7, 1998	3.53
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. Roller Coaster: A roller coaster breaks down while Eugene and Arnold are at the top of its tallest drop.
9	48	"The Aptitude Test / Oskar Gets a Job"	October 14, 1998	3.41
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. Oskar Gets a Job: Oskar gets a job as a newspaper carrier but uses Arnold as cover for his laziness.
10	49	"Arnold Betrays Iggy / Helga and the Nanny"	October 19, 1998	3.46
Arnold Betrays Iggy: Arnold accidentally finds out that Iggy wears pink bunny pajamas, and Iggy makes him promise not to tell. The next day, Arnold accidentally lets it slip, putting Arnold and Iggy's friendship to the test. Helga and the Nanny: Bob hires a nanny to help Miriam around the house, much to Helga's dismay. From this moment on, Helga attempts to scare the nanny away.
11	50	"Career Day / Hey Harold!"	October 21, 1998	3.49
Career Day: Arnold gets paired with the bitter Jolly Olly Man as part of Career Day. Hey Harold!: Harold is invited to Rhonda's party and befriends the female bully, Big Patty.
12	51	"Best Man / Cool Party"	November 2, 1998	3.52
Best Man: Coach Wittenburg assigns Arnold the duty of best man at his second wedding. Cool Party: Rhonda holds a cool-people-only party at her house. In retaliation, Arnold and his friends hold a "geek" party on the roof of his boarding house further up the street, leaving Rhonda's party deserted.
13	52	"Arnold & Lila / Grand Prix"	November 4, 1998	3.55
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. Grand Prix: The kids compete in a grand prix race against each other.
14	53	"Arnold's Thanksgiving"	November 18, 1998	3.56
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.
15	54	"Helga's Show / The Flood"	November 25, 1998	3.58
Helga's Show: Helga tells jokes about her classmates, who take offense to it. The Flood: The town is flooded and Arnold's class is trapped in the school.
16	55	"Part-Time Friends / Biosquare"	December 7, 1998	1.19
Part-Time Friends: Arnold is okay with working with Gerald at Mrs. Vitello's flower shop, but not with working for Gerald, which causes the friendship to hit a snag. Biosquare: As a science assignment, Arnold and Helga have to work together, and get along with each other, for 24 hours in the Sunset Arms greenhouse. *Note: This episode was held back from season 1.
17	56	"Phoebe Takes the Fall / The Pig War"	December 7, 1998	3.51
Phoebe Takes the Fall: Helga demands that Phoebe lose a quiz competition to impress her competitive father. The Pig War: Arnold, Grandpa, and friends reenact the Pig War.
18	57	"Crabby Author / Rich Kid"	December 28, 1998	3.44
Crabby Author: Arnold does his school report on an author he likes, only to find out that she's a grumpy, old hag. Rich Kid: Lorenzo, a neurotic rich kid, comes to P.S. 118. All the kids try to help him become an average kid. *Note: Lorenzo had already appeared in the previous episodes "Arnold's Room", "Cool Party", and various season 3 episodes.
19	58	"Girl Trouble / School Dance"	January 4, 1999	3.57
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.
20	59	"School Play"	March 8, 1999	3.59
After hearing that Arnold is Romeo in the school play of Romeo and Juliet, Helga does everything she can to get the part of Juliet and kiss him.

Season 4 (1999)

Ep#	Total	Title	Original airdate	Prod. code
1	60	"Full Moon / Student Teacher"	March 10, 1999	4.63
Full Moon: Harold, Stinky and Sid all moon Principal Wartz, but Arnold gets the blame for it as an innocent bystander and refuses to reveal who really did it. Student Teacher: Helga's sister Olga stays over for the holiday, but takes charge of her class at school, to her horror. *Note: This was the first episode to feature Spencer Klein as the voice of Arnold.
2	61	"Big Gino / Jamie O. in Love"	March 15, 1999	4.64
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. Jamie O. in Love: Gerald's older brother, Jamie O., has a sudden burst of kindness when he finds a girlfriend. Arnold and Gerald find out she's actually taking advantage of him.
3	62	"Eugene's Birthday / Stinky's Pumpkin"	March 17, 1999	4.61
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.
4	63	"The Beeper Queen / Oskar Can't Read?"	March 29, 1999	4.65
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.
5	64	"Dinner for Four / Phoebe Skips"	March 31, 1999	4.62
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. Phoebe Skips: Phoebe is promoted to the sixth grade, but realizes that her new so-called "friends" are just using her to do their homework.
6	65	"Helga's Parrot / Chocolate Turtles"	April 5, 1999	4.67
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. Chocolate Turtles: 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.
7	66	"Love and Cheese / Weighing Harold"	April 7, 1999	4.68
Love and Cheese: Helga tries to separate Arnold from Lila while at the annual Cheese Fair. Weighing Harold: 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.
8	67	"Back to School / Egg Story"	September 11, 1999	4.72
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. Egg Story: 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.
9	68	"It Girl / Deconstructing Arnold"	September 18, 1999	4.69
It Girl: Helga becomes a model, but she quits after she gets irritated at everyone dressing like her. Deconstructing Arnold: Arnold's classmates are tired of constantly telling them the right thing to do, so he stops giving them advice. But when his classmates get into sticky situations, they are in desperate need of his advice.
10	69	"Grudge Match / Polishing Rhonda"	September 25, 1999	4.70
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.
11	70	"Weird Cousin / Baby Oskar"	October 9, 1999	4.73
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.
12	71	"Grandpa's Sister / Synchronized Swimming"	October 16, 1999	4.76
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.
13	72	"Helga Sleepwalks / Fighting Families"	October 23, 1999	4.74
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)
14	73	"Headless Cabbie / Friday the 13th"	October 30, 1999	4.66
Headless Cabbie: 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. Friday the 13th: Arnold and Gerald try to prove superstitions are fictitious, only for it all to backfire on them.
15	74	"Veterans Day"	November 6, 1999	4.71
Arnold's Grandpa recalls his adventures as a soldier in the Second World War, beating up Hitler personally, with Gerald's dad, Martin, who remembers his own time fighting in Vietnam.
16	75	"Helga on the Couch"	December 4, 1999	4.78
Helga confides in the school psychiatrist about her social life, family life, and her love for Arnold. (Guest starring Kathy Baker)
17	76	"Dino Checks Out"	December 11, 1999	4.79
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".

Season 5 (2000-04)

Ep#	Total	Title	Original airdate	Prod. code
1	77	"Monkeyman! / Buses, Bikes, and Subways"	March 4, 2000	4.75
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.
2	78	"Helga's Masquerade / Mr. Green Runs"	March 11, 2000	4.77
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.
3	79	"Sid the Vampire Slayer / Big Sis"	March 18, 2000	5.81
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.
4	80	"Bag of Money / Principal Simmons"	April 5, 2000	5.83
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.
5	81	"New Bully on the Block / Phoebe Breaks a Leg"	April 12, 2000	5.84
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. *Note: Both Wolfgang and Ludwig (the two bullies) in "New Bully on the Block" are voiced by the past two actors for Arnold, Toran Caudell and Phillip Van Dyke.
6	82	"Helga's Locket / Sid and Germs"	April 19, 2000	5.86
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.
7	83	"Suspended / Ernie in Love"	April 26, 2000	5.89
Suspended: Harold hates school so much that he deliberately gets himself suspended. He at first sees suspension as a vacation but it is not long before he realizes the true misery of his punishment. He then tries to get back to school, but the more desperate his attempts to do so, the longer the suspension Principal Wartz gives him. Ernie in Love: Ernie meets a plus-sized woman, but feels insecure that one like her would be interested in a man like him. Lola voiced by Jennifer Tilly.
8	84	"Parents Day"	April 12, 2000	3.60
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 from season 3.
9	85	"Summer Love (a.k.a. Beach Story)"	May 25, 2000	4.80
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. He meets a girl called Summer who he warms to, but Helga knows otherwise about her motives in being with him, and tries to warn him. They kiss for the second time in the series.
10	86	"Stuck in a Tree / Rhonda Goes Broke"	January 5, 2001	5.85
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. Rhonda is embarrassed to be living in such a shabby place, so she hides it from her classmates and makes Arnold promise not to tell.
11	87	"Beaned / Old Iron Man"	January 12, 2001	5.87
Beaned: Helga is knocked unconscious when a baseball strikes her on the head and gets amnesia. Arnold tries to help her as much as he can, and when Helga regains her memory, she pretends she still has amnesia to get Arnold's attention. Old Iron Man: Grandpa Phil and his old friend (Jimmy Kafka) have been feuding for quite some time, as their friendship fell apart years ago. However, they still attempt to compete with one another as they each believe they are the better individual; though when both men decide to enter the extremely dangerous Old Iron Man triathlon, Arnold attempts to put an end to their feud, as he doesn’t believe they should risk their lives over something so trivial. Guest Cast: Richard Mulligan as voice of Jimmy Kafka
12	88	"Arnold Visits Arnie / Chocolate Boy"	January 26, 2001	5.90
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, in return for more, forcing him to turn to Arnold for help, who later finds out. Ashamed of his addiction afterwards, he again turns to him to break his chocolate obsession once and for all.
13	89	"Harold vs. Patty / Rich Guy"	February 3, 2002	5.91
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.
14	90	"April Fool's Day"	April 1, 2002	5.98
After being the victim of many of Helga's April Fools pranks, Arnold gets revenge. He unintentionally blinds her temporarily, and she decides to get him back by acting like she will be permanently blind for life. *Note: Alex Linz voices Arnold in this episode
15	91	"Gerald's Game / Fishing Trip"	April 27, 2002	5.82
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. (Guest voices: Davy Jones and Michael Jeter)
16	92	"Married"	May 11, 2002 (2002-05-11)	5.96
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.
17	93	"On the Lam / Family Man"	June 1, 2002 (2002-06-01)	5.93
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. He pretends that the boarders are his family to impress his family-man obsessed boss, who comes round to have dinner with them. *"On the Lam" was first aired separately on December 8, 2001.
18	94	"The Racing Mule / Curly's Girl"	October 14, 2002	5.92
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. This is a parody of the romantic comedy Can't Buy Me Love. *This episode was originally intended to air on 14 October 2002 but Nickelodeon began airing "Married" instead. The network did not catch the mistake until just after the second half began, when they switched to the regularly scheduled "Curly's Girl". After this, Nickelodeon did not rerun the episode until 19 November 2003, when theyhttp://www.nickutopia.com/ repeated the same mistake. On 11 January 2004, it was finally aired in full.
19–20	95–96	"The Journal"	November 11, 2002 (2002-11-11)	5.99–5.100
Arnold finds a diary and map that belonged to his parents, which shows their possible current location. *Note: Alex Linz voices Arnold in this episode. Also, this should have been the last episode. This was supposed to lead up to the jungle movie, but Viacom decided to cancel the project.
21	97	"Timberly Loves Arnold / Eugene, Eugene!"	January 28, 2003 (2003-01-28)	5.97
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. The director is voiced by Tim Curry.
22	98	"Ghost Bride / Gerald vs. Jamie O"	November 11, 2003	5.88
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.
23	99	"Simmons' Documentary / Big Bob's Crisis"	November 15, 2003	5.95
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 Simmons' Documentary is also known as A Day in the Life of a Classroom.
24	100	"Grandpa's Packard / Phoebe's Little Problem"	June 8, 2004 (2004-06-08)	5.94
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 passes gas into a microphone, and she decides that she will not return to P.S. 118. Her classmates are constantly teasing her about the incident (which makes her feel even worse), and it is up to Mr. Simmons to convince her to come back. Note: This is the series finale.