In a flashback, there was one scene where a grill crashes through the window, but that was actually caused by Carl, not Urkel.
The German episode title is "Is was Doc?".
In some flashbacks, Judy Winslow can be seen, as though she never disappeared.
Rachel True and former regular cast member Telma Hopkins would later star together on the UPN sitcom, Half And Half.
Clips from episodes 1.12, 1.17, 2.8, 2.11, 2.14, 3.2, 3.4, 3.18, 3.24, 4.1, 4.2, 4.3, 4.10, 4.12, 4.17, 4.24, 5.2, 5.3, 5.14, 5.17, and 6.11 were shown in this episode.
Rosetta LeNoire (Mother Winslow), Bryton McClure (Richie), and Shawn Harrison (Waldo) don't appear in this episode (except in flashbacks). They're all credited, however.
The title of this episode is a play on, originally, a catchphrase of the cartoon character Bugs Bunny.