The cost of airing an ad on TV depends mostly on the length and the time slot placement of the commercial. The demand for prime time slots also affects the price determination. When calculating these costs, you'll have to add the cost of producing and airing the ad. Currently, the cost of producing and airing a 30 second TV commercial (national TV) is around $300,000. See www.televisionforbusiness.com/TelevisionAdCost.htm for details.