The national high school football season will once again begin under the bright lights of national television. 5 St. Thomas Aquinas (Florida) facing No. South Florida Showcase Features National HeavyweightsThe Broward County National Football Showcase on Aug. 29 features two of the weekend's biggest games. St. Thomas Aquinas, meanwhile, begins its pursuit of an eighth straight Florida state title against one of Texas' perennial powers. 9 team, opens the showcase Aug. 20 by hosting state rival Brentwood Academy in a rematch of last year's state championship game.