This undated frame grab taken from AP video shows a Barack Obama campaign ad on a television screen in Roanoke, Va. Political ads are blasting across the television airwaves in the Roan

 

              This undated frame grab taken from AP video shows a Barack Obama campaign ad on a television screen in Roanoke, Va. Political ads are blasting across the television airwaves in the Roan
This undated frame grab taken from AP video shows a Barack Obama campaign ad on a television screen in Roanoke, Va. Political ads are blasting across the television airwaves in the Roanoke/Lynchburg Va. market, delighting broadcasters but making some viewers cringe. Blame Virginia's status as a swing state in the 2012 presidential race _ and the cheap air time in the Roanoke/Lynchburg television market. By the number of television households, with New York at the top, Roanoke is down the market size list at number 68. (AP Photo/AP Video)