Steven  Spielberg Presents Animaniacs, usually referred to as Animaniacs, was  an American animated series, distributed by Warner Bros. and produced by  Amblin Entertainment. The cartoon was the second animated series  produced by the collaboration of Steven Spielberg and Warner Bros.  Animation during the animation renaissance of the late 1980s and early  1990s. The studio's first series, Tiny Toon Adventures, was a success  among younger viewers, and attracted a sizable number of adult viewers. A  major precedent for the series was the success of Disney's Who Framed  Roger Rabbit, which featured appearances by many of its famous cartoon  characters, and was co-produced by Amblin Entertainment. The Animaniacs  writers and animators, led by senior producer Tom Ruegger, used the  experience gained from the previous series to create new animated  characters that were cast in the mold of Chuck Jones and Tex Avery's  creations.
The comedy of  Animaniacs was a broad mix of old-fashioned wit, slapstick, pop culture  references, and cartoon violence and wackiness. The show featured a  number of comedic educational segments that covered subjects such as  history, mathematics, geography, astronomy science, and social studies,  often in musical form. Animaniacs itself was a variety show, with short  skits featuring a large cast of characters. While the show had no set  format, episode structure varied to suit the needs of the segments  included; the majority of episodes were composed of three short  mini-episodes, each starring a different set of characters, and bridging  segments.
Animaniacs first aired on Fox Kids from 1993 until 1995 and later appeared on The WB from 1995 to 1999 as part of its Kids' WB afternoon programming block. The series had a total of 99 episodes and one film, titled Wakko's Wish. It was also aired on Nickelodeon for a short while with a slightly altered intro, but it was cut short.