This is a great idea and so timely! I was just speaking with my colleague about how as kids we were exposed to the classics simply by watching the old Warner Bros cartoons.
(WTO, Hungarian Rhapsody, Barber of Seville)
The theme to the "Lone Ranger", William Tell Overture (I heard it this morning on my way in to work).
Good times (do kids have these types of special perks these days? I don't have children and don't watch cartoons. But thinking back, we were really lucky.)