ATLANTA — Pete Van Wieren, the bespectacled broadcaster who was part of the landmark team that carried Atlanta Braves games throughout the nation on Ted Turner's "SuperStation," died Saturday after a battle with cancer, the team said. He was 69. Affectionately known as "The Professor" for his encyclopedic knowledge of the game and long hours of research before each broadcast, Van Wieren spent 33 years with the Braves before retiring in 2008, shortly after the death of his longtime partner Skip Caray.