 Complete the following phrase:  ChalkZone was the creation of Bill Burnett and Larry Huber, with Hubers idea of a boy with magic chalk and Burnetts idea of a world behind the chalkboard. The concepts origin dated back during the production of Hanna Barberas What a Cartoon! where Seibert originally wanted Huber to develop a cartoon for the showcase and assigned him with Burnett, who was writing for Cow and Chicken at the time, to develop a pilot for a potential series. Development fell through at the last minute from the result of Warner Bros. Animation acquiring Hanna Barbera Cartoons. The concept came back when Seibert developed Frederator Studios and was pitched as a short on Nickelodeons Oh Yeah! Cartoons before getting the greenlight in 1998. In 1999, ChalkZone became the first spin-off of Oh Yeah! Cartoons to enter production and be greenlit. Despite this, ChalkZone did not make it to the air until 2002, as the initial 13 green-light episodes were shortened to 6 due to executive reasons, all which were completed by 2000. The shows air-date was up for debate until the lack of new programming and Americas 