Some good names thrown about...does Bob Costas do his Sunday Night Football halftime commentary from New York or is he at whichever stadium? If the former, I could see it. If the latter, he could obviously do his reports from 30 Rock, or record them in advance.
Can\'t go wrong with Bergeron or Kiernan IMO. If he wasn\'t so notorious for being such a prick in every TV gig he picks up, I\'d suggest Keith Olbermann. Not like he\'s doing anything... :-P
For some reason, I feel Anderson Cooper could pull off something like this.