Johnny Test is an American-Canadian
animated television series produced by
Warner Bros. Animation, for the first season, and
Cookie Jar, for the remainder of the series. It premiered on
Kids' WB, on September 17, 2005, which continued to air the series through its second and third seasons. The rest of the series aired on
Cartoon Network, from its debut on January 7, 2008, in the United States and internationally. In Canada, the series airs on
Teletoon, premiering September 8, 2006.