While "Background Guy" is a very easy bit to pitch in the writer's room, I'd imagine Grandpa Jack McGee on "The Dysfunctional Home Show" was not. There is no one, I repeat, no one who could pull off this bit except Jim Carrey. I have no idea why it works, but it just does and gives him free range to act like the balls-to-the-wall weirdo that only he's capable of. It's brilliant, honest, and utterly unique.