 In 1976, he appeared in a television special, "The Good Old Days of Radio", in which he and several vintage radio stars---including Art Linkletter, Eddie Anderson (Rochester on "The Jack Benny Program"), Jim Jordan ("Fibber McGee & Molly"), Dennis Day, George Fenneman (Groucho Marx's sidekick for "You Bet Your Life"), and Edgar Bergen---discussed highlights of their radio careers.Stone's debut on Broadway came in "Treasure Island".His other Broadway acting credits include "O Evening Star", "January Thaw", "Tom Sawyer", "Brother Rat", "Horse Fever", "The Alchemist", "She Stoops to Conquer", and "This Is the Army".