Cartoon Network, before they started their rapid decline a couple of years ago, had some very creative on-air promos and commercial bumpers. The commercial outtro-intro segments for "The Bugs and Daffy Show" featured new animation of the characters themed around the CN logo. There were roughly 5 of these, and depending on the time of day the show was on, their backgrounds would change color. (Morning was yellow, afternoon green, evening blue and late-night purple.) Here are two of them: a Bugs Bunny/Daffy Duck bit and one with Pepe Le Pew. I believe that's Jeff Bergman doing the voice-over on the Pepe clip!
And just for grands, I've dug up two more bits...a Yosemite Sam "dance" routine and the ending to the show!