Sham, a NASCAR novice, said getting in on the ground floor was part of his attraction to the concept. “This is the tip of the iceberg on how people will watch television 25 years from now,” Sham said. Or perhaps 25 months from now. – From News Services Come Sunday afternoon, Brad Sham will commence calling Tony Stewart’s race at the Daytona 500. While Darrell Waltrip and the rest of the folks at Fox are calling the entire 43-driver field for a national television audience, Sham will be calling Stewart’s race for DirecTV subscribers on Channel 795. At his side will be analyst Ray Dunlap from SPEED Channel. This Tony Stewart channel will have dedicated cameras and microphones to ensure all-Tony, all-the-time coverage. Four other drivers will receive similar treatment. The Daytona day of Jimmie Johnson, Kevin Harvick, Michael Waltrip and Dale Earnhardt Jr. also will be dissected ad nauseum. 160Want local news?Sign up for the Localist and stay informed Something went wrong. Please try again.subscribeCongratulations! You’re all set!