Barack Obama has purchased a half-hour block of airtime on NBC on October 29, a week before the election. Obama will run an extended campaign commercial at 8 p.m., preempting Knight Rider. Lest you need reminding, Knight Rider is part of Ben Silverman's awesometastic fall lineup and if it's not a hit, he'll probably get shitcanned. We're feeling better and better about our endorsement of Mike Huckabee every day. [HR]