Rare clips -- and a complete episode of "The Bing Crosby Show" -- highlight Groucho Marx's guest appearances on classic radio shows. Included: "The Jack Benny Program" (Groucho plays checkers with Jack), "Birdseye Open House" (Groucho reprises his Dr. Hackenbush character from "A Day at the Races," and in a second program appears in a skit called The Thorndykes), Philco Radio Program (Groucho joins Bing Crosby in Pittsburgh), and "The Bing Crosby Show" (complete episode).