Interesting: obama's bought (at $2 million each) a half hour in primetime on 10/29 on both CBS and NBC so far (and is trying to reserve the same half hour on ABC and Fox, apparently).
Obama Buys Primetime Slots on CBS and NBC | The Trail | washingtonpost.com
This is a problem for McCain. He can't afford to spend 8 million dollars on countering the half hour politimercial (he only has $84 million for both September and October, by limiting himself to public financing)
. Six days before the election.. probably can't get anything closer, but I THINK it's close enough to the election for any message to stick..