Histeria! is an American animated series created by Tom Ruegger and produced by Warner Bros. Animation. Unlike other animated series produced by Warner Bros. in the 1990s, Histeria! stood out as the most explicitly educational program in order to meet FCC requirements for educational/informational content for children.Histeria! was aired on Kids' WB from 1998 to 2000, which continued to air reruns until August 30, 2001.