Since it turns out that this is Beavis and Butthead week (again?) here, we'd be remiss if we didn't offer an opinion on the top episodes of all time. Not our opinion, mind you - that requires effort - but the opinion of the OC Weekly, which I believe is fictional.
See it here, and provide your biased commentary in the, um, comments. Cool.
As might be expected, they go with 'Cornholio' as the top episode. Hard to argue that, but it's also the safest route. Still makes me laugh, though.
Beavis and Butthead vaya cornholio by AeroLIger