The Simpsons Season 20 Episode 10: "Take My Life, Please"
After an old high school rival named Vance is honored at on the Springfield Wall of Fame, Homer becomes depressed when he discovers that Principal Dondelinger rigged the student council election so Vance would win.
(After it's learned in Homer's alternate reality that he and Marge wouldn't have Bart, Lisa, and Maggie.) Marge: Well that's what's missing. Our lives would be horrible without the kids. Homer: Uh, yeah, that must be it. This is the best of all possible worlds. Blah, blah, blah and--I wanna live in the sauce! (He jumps into the sauce pot, the Sauce Chef pulls him out.) Sauce Chef: If you could live in the sauce, don't you think I would live in the sauce?! Stupid!
Homer: Oh, I get it, you're all going to try to convince me that my life is great just like it is, right? Lisa: Are you kidding? We couldn't even convince you that Bruce Wayne is Batman. Homer: Oh, come on, that billionaire playboy. He's too busy socializing at cocktail parties and managing the affairs of the Wayne foundation Marge: (whispering) Don't open this one again. Lisa: Why does he think Alfred is friends with Batman? Marge: Just stop.