Hi. This question is kind of weird, and unfortunately I don't remember much about the scene, so I'm not betting on anyone being able to answer this. Anyway, here it is.
The scene opens and George is watching TV, or possibly even reading, on his couch at home. Suddenly he says to himself (inside his head) something completely random, I mean, out of nowhere. (I believe it's a question.) Kind of similar in tone to the way he throws out his Aquaman question about whether he's confined to the ocean. It draws a big laugh, and then someone walks in and the action begins.
So, even though this is a very vague description, I hope it rings a bell with somebody.