Vanoff won a Tony Award for Best Musical in 1990 for his production of the City of Angels musical on Broadway. Additionally, he won five Emmy Awards as a producer for: The Julie Andrews Hour in 1973, The Kennedy Center Honors in 1984, 1987 and 1989, and Julie Andrews's special, The Sound of Christmas, in 1988. In 1990, he was named Showman of the Year by the Publicists Guild of America (which later merged into the International Alliance of Theatrical Stage Employees).
