It's The What a Cartoon New Year's Eve Party! was an special 6-hour New Year's Eve What a Cartoon! marathon that aired on December 31, 1997 at 2:00 PM to 8:00 PM. The marathon includes all the What a Cartoon! episodes.
At 8:00 PM, the marathon was followed by Brak's Extravagant New Year's Eve Cartoon Party Show Spectacular!.