Bob Costas has been a mainstay of sports broadcasting for decades. He’s done the Super Bowl, World Series, NBA Finals and the Olympics. But before he was on national and international stages, he got his start in St. Louis — at KMOX in 1974. Costas is back in St. Louis, the place he considers his hometown, to receive the Stan Musial Lifetime Achievement Award for Sportsmanship. He reflects on his start in broadcasting, lengthy career, retirement from baseball play-by-play and potential return to NBC Sports.