30 Rock returned last night to a 27% drop in adult demos, losing a quarter of its lead-in from The Office (which itself was down from last week's OK-rated wedding episode). Did the audience diminish due to the loss of Fey's bête noire Sarah Palin, or were viewers just confused by that super long, confusing short film by Jack McBrayer that swallowed up a commercial break? Seriously, what was that thing? [THR]