<P> Partible pitched the series to Hanna - Barbera 's animation showcase What a Cartoon ! , basing it on his senior thesis project he produced while attending Loyola Marymount University . A pilot short aired on Cartoon Network in 1995 , and was followed by two more shorts ; the popularity of the shorts led to the network commissioning a half - hour series , which premiered on July 14 , 1997 . The series was renewed for a second season in 1999 , during which Partible left and the show was retooled under the direction of Kirk Tingblad . In 2003 , Partible returned to the series for a fourth season , restoring it to its original format and style . It ended on August 27 , 2004 , with a total of four seasons and 67 episodes . The first three seasons were produced by Hanna - Barbera Cartoons , while the fourth season was produced by Cartoon Network Studios . </P>
how many seasons of johnny bravo are there
four