Harvey Birdman, Attorney at Law is an adult animated television sitcom . The show was created by Michael Ouweleen and Erik Richter for Cartoon Network's Adult Swim . The pilot aired as a sneak peek on Cartoon Network on December 30, 2000 . The series officially premiered on Adult Swim on September 2, 2001, the night the block launched . It ended on July 22, 2007, with a total of 39 episodes, over the course of four seasons .
Harvey Birdman, Attorney at Law is the first Williams Street cartoon to maintain continuity through the entire series . The series uses a surrealist style of comedy, featuring characters, objects, and jokes that are briefly introduced and rarely referenced thereafter . Harvey's clients are primarily characters taken from the Hanna-Barbera cartoon series of the same era .