GoPro IRONMAN World Championship: Preview of NBC's broadcast

A preview clip of NBC's broadcast of the 2013 GoPro IRONMAN World Championship, set to air Saturday, November 16, at 4:30 pm ET. In addition to coverage of the men's and women's pro races, the show will feature Hines Ward, Gordon Ramsay, Karen Aydelott, an amputee who qualified for the race as an able-bodied athlete, and 78-year-old Harriet Anderson.