Wikipedia
Trash-O-Madness is a 1992 animated short (which began production in 1991). Created by Joe Murray, who, prior to this point, had made several independent animated shorts (including The Chore and My Dog Zero), as well as several MTV IDs, it was the pilot episode for what became Nickelodeon's 4th nicktoon, Rocko's Modern Life. The series ran for 4 seasons and 52 episodes, from 1993 to 1996. During the first season, a new version of the pilot, that was extended for the purposes of including it as a regular episode, was produced. The new version was paired up "The Good, the Bad, and the Wallaby" as the 10th episode to be produced, and aired as the 6th. In addition, that episode featured an extended end credit sequence to accommodate the names of production crew behind "Trash-O-Madness". On February 7, 2012, the original pilot version found its way onto Shout! Factory's season 2 DVD as a special feature.