I know he does it for a laugh, but any humour it might have had departed long ago for me. Now it is just tired and lazy, and takes up time that would be better spent on the game-show and guests.
(Rob mentioned his socks on some other show, and now he tweets about them incessantly on Twitter. Again, it's very lazy comedy. He thinks he has a thing, or a party trick, and trots it out at every opportunity. That he's doing it ironically doesn't make it funny or witty.)