A compilation show originally airing on Kids WB in 1999 and originally known as The Cat & Birdy Warneroonie Pinky Brainy Big Cartoonie Show. Originally running for an hour and a half in length, the first four episodes featured Looney Tunes shorts with newly-made title cards, as well as short segments originally featured on Animaniacs, The Sylvester and Tweety Mysteries, Pinky and the Brain, and Pinky, Elmyra, and the Brain.

After the first four episodes, when Kids WB! began airing Pokémon (February 13, 1999), the show was reduced to a half-hour format and showed only Animaniacs and Pinky, Elmyra, and the Brain segments. Notably, it was through The Big Cartoonie Show that most episodes of the latter program were shown, as the episodes had already been paid for prior to its removal from the network's schedule.

Despite the fact that most of the show was made up of old material, the show was popular enough to garner a second season. In its second season, the show's full name was changed to The Cat & Bunny Warneroonie SuperLooney Big Cartoonie Show and featured shorts from Tiny Toon Adventures and Animaniacs. In this season, the show was given host segments starring Karen and Kirby. The Big Cartoonie Show was also now aired on weekday afternoons, where the Looney Tunes shorts were also being featured.

The show was cancelled at the end of the 1999-2000 season, with its last airing on August 24, 2000. With this, Tiny Toon Adventures, Animaniacs and the Looney Tunes shorts were permanently removed from the Kids' WB block.