Season 1

# [6] Title Original airdate Production code[7]
1 "Welcome to LazyTown" August 16, 2004 (2004-08-16) 106
When Stephanie arrives in LazyTown to stay with her Uncle Milford, she finds that she has trouble making friends because all the local kids spend all their time indoors playing video games. So, her uncle enlists the help of Sportacus, an athletic hero who encourages the kids to have fun by remaining active. Unfortunately, this doesn't sit well with Robbie Rotten, a lazy cheat who takes pride in having LazyTown be the laziest town around, so he plots to get rid of Sportacus.
2 "Defeeted" August 16, 2004 (2004-08-16) 103

It seems that nobody is playing outside in LazyTown. Stephanie wants to play soccer, but Pixel just wants to play a new soccer game on his computer and Ziggy wants to take a nice after-breakfast nap so he'll be ready for lunch. Mayor Meanswell sends a message to Sportacus and sets up this year's Sportacular Spectacle Day. Sportacus decides to perform a great soccer trick, but Robbie plans to ruin it all. He dresses up as a traveling salesman, messes up Sportacus's shoes and then tricks him into wearing radio-controlled boots.
Disguises worn by Robbie Rotten in this episode: Rob U. Blind, the Traveling Salesman; Lazycus
3 "Sports Day" August 17, 2004 (2004-08-17) 102

The kids must face Robbie Rotten in a sports competition without the help of Sportacus after the villain causes the athletic hero to suffer a Sugar Meltdown brought on by a candy apple.
Disguises worn by Robbie Rotten in this episode: The Mailbox
4 "Crystal Caper" August 18, 2004 (2004-08-18) 105
Sportacus loses his Crystal and offers a reward of one free wish to whoever finds it and returns it. Robbie sees this as the opportunity to get the free wish and use it to wish Sportacus out of LazyTown. It is soon discovered that Stingy has found the Crystal and kept it for himself.
5 "Sleepless in LazyTown" August 19, 2004 (2004-08-19) 111

Robbie discovers that plenty of sleep gives people much needed energy so he plots to rob Sportacus of his precious sleep so that he'll become weak and lose an upcoming baseball game.
Disguises worn by Robbie Rotten in this episode: Softball Uniform
6 "Swiped Sweets" August 20, 2004 (2004-08-20) 109

Bessie's birthday cake turns up missing and Robbie tricks everyone into believing that Sportacus stole it. The accusations land Sportacus in jail so the kids get together to prove that he's innocent.
Disguise worn by Robbie Rotten in this episode: Sherlock Foams, Private Eye
7 "Hero for a Day" August 23, 2004 (2004-08-23) 112
Ziggy's desire to be a hero causes problems for LazyTown.
8 "Sportafake" August 24, 2004 (2004-08-24) 108

The kids are inclined to do whatever Robbie says and not question him when he disguises himself as Sportacus and gets them to act lazy. The lesson in the episode is to speak up even if no one wants to hear it.
Disguise worn by Robbie Rotten in this episode: Sportacus
9 "Happy Brush Day" August 25, 2004 (2004-08-25) 110

Ziggy tosses out a toothbrush, a birthday gift from Sportacus, in favor of a taffy machine from Robbie Rotten. Soon, Ziggy is unable to stop the gadget when it begins to get out of control and covers LazyTown in taffy.
Disguise worn by Robbie Rotten in this episode: The Birthday Fairy
10 "Lazy Scouts" August 26, 2004 (2004-08-26) 104

The kids join the Lazy Scouts lead by Scoutmaster Robbie, who promises to teach them the easy and lazy way to go camping. This doesn't sit well with Stephanie, especially when she discovers that the kids are ill-prepared for an oncoming storm.
Disguise worn by Robbie Rotten in this episode: Scottie the Scoutmaster
11 "Dr. Rottenstein" September 27, 2004 (2004-09-27) 116

Robbie causes panic in LazyTown when he disguises himself as Dr. Rottenstein and makes everyone believe that vegetables are at the root of a new disease.
Disguise worn by Robbie Rotten in this episode: Dr. Rottenstein
12 "Rottenbeard" October 4, 2004 (2004-10-04) 119

Robbie tricks the kids into going on a treasure hunt for the LazyTown Stone and then tries to steal it from them until Sportacus arrives to stop Robbie, much like a mysterious hero (perhaps Sportacus 9) once stopped the famed Rottenbeard.
Disguise worn by Robbie Rotten in this episode: Rottenbeard
13 "Cry Dinosaur" October 25, 2004 (2004-10-25) 115

Stephanie and Stingy campout with a scared Ziggy who thinks he's seeing a dinosaur roaming about. After Sportacus mentioned he's afraid of the dinosaurs, Robbie decides to disguise himself as a dinosaur to scare Sportacus out of LazyTown. The episode talks about facing your fears.
Disguise worn by Robbie Rotten in this episode: A Purple Dinosaur
14 "My Treehouse" November 11, 2004 (2004-11-11) 113
The kids enter a treehouse building contest but find it difficult working with Stingy because he doesn't know how to work as part of a team.
15 "The Laziest Town" June 6, 2005 (2005-06-06) 122
The kids attempt to raise the Energy Meter in order to avoid being named the Laziest Town.
16 "Dear Diary" June 7, 2005 (2005-06-07) 118
A page - supposedly from Stephanie's diary - causes trouble amongst the children.
17 "Zap It!" June 8, 2005 (2005-06-08) 107
Pixel invents a machine that makes things vanish and Robbie tries to get his hands on it so that he can get rid of Sportacus. Unfortunately, the Zapper didn't make items vanish, it just made them invisible.
18 "Records Day" June 9, 2005 (2005-06-09) 131
Everyone in town is busy trying to set new world's records, with Robbie trying to be the laziest man in the world. Robbie constantly tries to sabotage the kids' world record attempts by breaking things in LazyTown. He also builds a soccer ball catapult to prevent Sportacus from coming to Lazytown to help with the kids' record-setting. One of Robbie's catapulted soccer balls hits the controls on Sportacus' airship, which flies out of control. Will Stephanie and the kids save Sportacus and the airship before it's too late?
19 "Prince Stingy" June 10, 2005 (2005-06-10) 132

Robbie fools Stingy into thinking that he's the Prince of LazyTown by disguising himself as a knight. This, however, soon causes trouble, as Stingy is locked up in a fake tower and Robbie leaves the children a scroll of rules he wrote (the children don't know that he wrote it, as he says Stingy did) so Sportacus can stop saving others by falling into a trap. This doesn't go as planned, as the children are the ones who fall in just as Sportacus arrives to save the day!
Disguise worn by Robbie Rotten in this episode: A Royal Messenger
20 "Pixelspix" July 11, 2005 (2005-07-11) 117
Pixel designs a LazyTown website about the town's residents but neglects to include Robbie. This angers Robbie, so he attempts to "crash" the website. However, he ends up sucked into the computer. Sportacus must enter the website and kick Robbie out of the website — literally.
21 "Play Day" August 1, 2005 (2005-08-01) 129

The kids celebrate a day devoted to playing games.
Disguises worn by Robbie Rotten in this episode: The Rotten Kid (a cowboy); Gorilla
22 "Remote Control" August 2, 2005 (2005-08-02) 121
Pixel creates a remote that controls everything. Chaos ensues when Robbie steals the remote and uses it to control the residents of LazyTown.
23 "Sportacus Who?" August 3, 2005 (2005-08-03) 123
Robbie uses a device to erase Sportacus' memory.
24 "Soccer Sucker" August 3, 2005 (2005-08-03) 114

Robbie uses a soccer-playing robot to play against Sportacus in a game. NOTE: This episode premiered on Noggin.
Disguise worn by Robbie Rotten in this episode: Soccer-Bot 6000
25 "Miss Roberta" August 4, 2005 (2005-08-04) 127

The kids learn to misbehave from Robbie when he disguises himself as a manners expert named Miss Roberta.
Disguise worn by Robbie Rotten in this episode: Miss Roberta, Manners Expert
26 "LazyTown's New Superhero [Special Double-Length Episode]" August 15, 2005 (2005-08-15) 120 & 124
LazyTown has a new superhero and her name is SportaStephanie! In this special one-hour episode, Sportacus takes a vacation and leaves LazyTown in the hands of his good friend Stephanie. As SportaStephanie, she faces her first big challenge when Robbie unleashes a hero-hating machine called Robo-Dog.
27 "Secret Agent Zero" October 21, 2005 (2005-10-21) 126

Sportacus and the kids help Mayor Meanswell become a secret agent so that he can find out how Robbie Rotten won a race to become mayor of LazyTown.
Disguise worn by Robbie Rotten in this episode: Mayor Fordmill Meansbad
28 "LazyTown's Greatest Hits" November 23, 2005 (2005-11-23) 128
Stephanie goes around LazyTown asking everyone what their favorite LazyTown song is while the music video of the song they name plays. The Mayor's is "Teamwork" from My Treehouse, Ziggy's is "Cooking by the Book" from Swiped Sweets and Miss Roberta, Trixie's is the Spooky Song from Cry Dinosaur, Sportacus' is "Twenty Times Time" from Happy Brush Day, Bessie's is "Man on a Mission" from Secret Agent Zero, Stingy's is "The Mine Song" from Dear Diary and Robbie says his is "You Are a Pirate" from Rottenbeard. At the end of the episode, Stephanie says her favourite song is "Bing Bang".
29 "LazyTown's Surprise Santa" December 9, 2005 (2005-12-09) 125

It's the Christmas season in LazyTown and everyone's getting ready for a holiday party. Robbie Rotten soon spots this, but declares that he wouldn't go even if he was invited. He hatches a plan to dress up as Santa Claus and spoil everyone's holiday fun. Meanwhile, Stingy is having trouble understanding the spirit of Christmas. He just loves the gift-getting, but can't quite seem to get into the gift-giving.
Disguise worn by Robbie Rotten in this episode: Santa Claus
30 "Robbie's Greatest Misses" February 7, 2006 (2006-02-07) 133

Mayor Meanswell is once again getting ready to present the Person of the Year trophy to Sportacus, but can't seem to keep it a secret that Sportacus is the winner. When he hears that Sportacus is winning again, Robbie decides to put a stop to it. Considering the past failures of his evil plans, he decides to hit Sportacus with several of his past failures, hoping that they'll combine into a success.
Disguise worn by Robbie Rotten in this episode: A Purple Cow