Season 0 of Dexter's Laboratory premiered on February 26, 1995.

Season 1 of Dexter's Laboratory premiered on April 28, 1996.

Season 2 of Dexter's Laboratory premiered on July 16, 1997.

Season 3 of Dexter's Laboratory premiered on November 16, 2001.

Season 4 of Dexter's Laboratory premiered on November 22, 2002.