No, no, the one I'm thinking of was from maybe Married with Children and Bud wants to know the difference between theory and reality and so Al asks Peg and the daughter something about whether they'd be willing to sleep with, I dunno, whomever, for a million bucks and they both say that absolutely they would sleep with the guy for a million bucks.
So then Al turns to Bud and says, "Now, in THEORY, we're millionaires. But in REALITY, we're living with a couple of sluts."