[Billthedrill]

Series? Gotta be Rocky & Bullwinkle. Single cartoon? Gotta be Bugs Bunny doing Wagner in “What’s Opera, Doc?” I have heard real opera singers singing “Kill the Wabbit, the Wabbit must die!”

[Charles Martel]

Gotta love the classical music that was featured in the vintage 'toons.

"What's up, Doc? ... Who?... Franz Liszt? Never heard of him. Wrong number."