Best Spoofs

My Fellow Comedists,

Last weekend, we showed the kids Airplane!. Then, taking the kids into school on Tuesday, the classical music station played Ponchielli's Dance of the Hours, which, of course, gave rise to a rousing chorus of "Hello Mudder, Hello Fadder" throughout the car. Then the less short of the short people comes home with word of "The Potter Puppet Players," a Harry Potter spoof with videos on YouTube. Three makes a pattern, so this weekend we ask about spoofs.

In any medium, spoofing anything, what are the best spoofs in history? Blazin' Saddles has to be mentioned right up front, of course, and then there's this one:
Others?

Live, love, and laugh,

Irreverend Steve