Advertising Age: It will cost advertisers just as much to advertise in the upcoming season of Fox’s “Empire” as it does in some top-tier NFL programming. Fox is selling commercial time in its hip-hop drama for about $500,000 for a 30-second spot, according to media buyers. And in some cases advertisers are paying more than that. That’s on par with the prices for a 30-second commercial in CBS’s “Thursday Night Football” last season. The Sept. 23 premiere is already sold out, according to buyers, and the finale is nearing that point.