Obama on the Airwaves

Obama is getting a discounted rate to take over the network airwaves on October 29th to push through his message of change and get everyone who watches TV to vote for him.

Is there a problem with this? Is it okay for the candidate who can afford to purchase airtime be able to? Is it okay for the media's favorite candidate to purchase airtime at a discount? Is it right that Oprah should offer to produce the spot for free?

I don't see why not.