In addition to his work with the Cardinals, Buck also earned assignments on many national sportscasts, including radio coverage of 18 Super Bowls and 11 World Series. Some of his famous play-by-play calls include the dramatic walk-off home runs hit by Ozzie Smith in Game 5 of the 1985 National League Championship Series, by Kirk Gibson in Game 1 of the 1988 World Series, and by Kirby Puckett in Game 6 of the 1991 World Series.