The first Nicktoon to air five days a week.
It was originally to be three two-minute shorts, but Peter Hannan came up with a theme song. A Nickelodeon executive phoned him and was singing it back and ordered more seasons.
Mr. Sunshine's first name is Cornelius.
A half cat/half dog animal, similar to the star(s) of this show, appeared in the surreal Looney Tunes short "Porky in Wackyland."
Seth MacFarlane sent a story test for the show but was rejected.