@PonyPon
I think Simpsons is even more irreverent than Spongebob. It actively undermines its own continuity.
Bart Simpson : “The nineties? What’s that?”
Granted, the Simpsons’ canon wasn’t always consistent anyways, (like Dr. Marvin Monroe just disappearing, and such) and other beloved cartoons are guilty of that too.
Even shorter-lived animated sitcom shows like “King of the Hill” have controdicted their own continuity before too. (Most glaring being Peggy’s Mother goes from being a nagging old middle-class housewife mother, to becoming a rather tough, strict tomboy-ish, deadpan Montana farmer.)