




Jimmy Neutron's Nicktoon Blast opens at Universal Studios Florida.
This is a list of notable events, premieres, releases, series cancellations and endings, and other business ventures for Nickelodeon in the year 2003.
Shows
Series premieres
- April 7 - Moose and Zee
- April 12 - All Grown Up! premieres as the Kids' Choice Awards leadout; though the series would officially premiere in November.
- August 1 - My Life as a Teenage Robot
- September 13 - Romeo!
Season premieres
- February 3 - The Wild Thornberrys season 5 (final)
- May 30 - ChalkZone season 2
- August 9 - As Told by Ginger season 3 (final)
- August 26 - Dora the Explorer season 3
- August 30 - All That season 9
- September 19 - The Adventures of Jimmy Neutron: Boy Genius season 2
Specials
- April 25 - The Adventures of Jimmy Neutron: "The Eggpire Strikes Back"
- August 17 - Nickelodeon Magazine's Big 10 Birthday Bash
- October 13 - The Adventures of Jimmy Neutron: "Operation: Rescue Jet Fusion"
Series finales
- September 19- Oswald
Movies
Theatrical
- June 13 - Rugrats Go Wild!
Made-for-TV
- February 23 - Maniac Magee
- July 12 - The Fairly OddParents: Abra-Catastrophe!
- February 3 - The Electric Piper
Comics
- The Rugrats comic strip is cancelled
Video games
- November 3 - The Fairly OddParents: Breakin' Da Rules
- November 10 - SpongeBob SquarePants: Battle for Bikini Bottom
Albums
- February 4 - ChalkZone: In the Zone
Books
- January
- February - A Pickles Passover
- May
- June
- July
- August 1 - Scrambled Planets!
- September
- October
- November
- December
- December 23
Home video releases
VHS
- January 28
- Rugrats Mysteries
- SpongeBob SquarePants: Bikini Bottom Bash
- SpongeBob SquarePants: Deep Sea Sillies
- February 4
- Blue's Clues: Blue's Big Band
- Dora the Explorer: Map Adventures
- March 4
- Nickelodeon: Nickstravaganza!
- Blue's Clues: 100th Episode Celebration
- SpongeBob SquarePants: Anchors Away
- SpongeBob SquarePants: The Sponge Who Could Fly
- April 1 - The Wild Thornberrys Movie
- May 27
- The Adventures of Jimmy Neutron: Time Warp
- The Adventures of Jimmy Neutron: When Pants Attack
- June 3
- Dora the Explorer: City of Lost Toys
- Blue's Clues: Shapes and Colors
- July 15 - The Fairly OddParents: Abra-Catastrophe!
- July 29
- SpongeBob SquarePants: Laugh Your Pants Off
- SpongeBob SquarePants: Sponge-a-Rama
- August 26
- All Grown Up: Growing Up Changes Everything
- Blue's Clues: Blue Takes You to School
- September 30
- SpongeBob SquarePants: Christmas
- Blue's Clues: Blue's First Holiday
- October 7 - The Adventures of Jimmy Neutron: Sea of Trouble
- December 16 - Rugrats Go Wild!
DVD
- January 28
- Rugrats Mysteries
- SpongeBob SquarePants: Tales from the Deep
- February 4 - Blue's Clues: Blue's Big Band
- March 4 - SpongeBob SquarePants: Lost at Sea
- April 1 - The Wild Thornberrys Movie
- May 27
- The Adventures of Jimmy Neutron: Confusion Fusion
- Harriet the Spy
- Good Burger
- June 3
- Dora the Explorer: City of Lost Toys
- Blue's Clues: Shapes and Colors
- July 15 - The Fairly OddParents: Abra-Catastrophe!
- July 29 - SpongeBob SquarePants: Tide and Seek
- August 26
- All Grown Up: Growing Up Changes Everything
- NickToons Halloween
- Blue's Clues: Blue Takes You to School
- September 15 - The Best of Ren & Stimpy
- September 30
- NickToons Christmas
- SpongeBob SquarePants: Christmas
- Blue's Clues: Blue's First Holiday
- October 7 - The Adventures of Jimmy Neutron: Sea of Trouble
- October 28 - SpongeBob SquarePants: The Complete 1st Season
- December 16 - Rugrats Go Wild!
Events
- April 11 - Jimmy Neutron's Nicktoon Blast opens at Universal Studios Florida
People
- April 19 - Caleel Harris is born
- May 1 - Lizzy Greene is born
- May 19 - JoJo Siwa is born
- June 11 - Breanna Yde is born
- August 18 - Max Charles is born
- September 18 - Aidan Gallagher is born
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