More on NBCTAMPA, Fla. — NBC said on the eve of Sunday's Super Bowl that it has sold the last two of the 69 advertising spots for the game, pushing total ad revenue for the event to a record $206 million. The network said its total of $261 million in ad revenue for all of Super Bowl day also is a record, calling it an especially impressive feat in the middle of the economy's steep downturn. The Super Bowl is the premier advertising event with an U.S.