Codename: Kids Next Door

: Cartoon Network (December 2002 – 2008; 2009 - 2014; 2021 - 2023), Kids' WB (2004) & Boomerang (February 2017 – March 2017; January 2, 2018 – May 27, 2019, June 8, 2021 – October 23, 2023, November 26, 2024 - present)

Warburton created a pilot episode, titled "Diseasy Does It", for another planned show, Kenny and the Chimp, which was to be produced by Hanna-Barbera.

The show began development under the name The Kids Next Door, which was later changed to the current title after another network began developing a show called Pigs Next Door.

In 2001, the show's pilot episode, "No P in the OOL", which was produced at Cartoon Network Studios, won a Cartoon Network viewer's poll, and as a result, Codename: Kids Next Door was greenlit to become a series, while Kenny and the Chimp was not greenlit by the channel.

The character Professor XXXL, who appeared in "Diseasy Does It", became a recurring character in Codename: Kids Next Door after Kenny and the Chimp was not picked up for a series, while Kenny and Chimpy did make a cameo in "No P in the OOL".

Codename: Kids Next Door was the most popular TV series produced at Curious Pictures, who previously did the work on Sheep in the Big City at Cartoon Network.