Machine generated contents note: 1. Sound comes in, vaudeville and silent pictures go out; 2. From Broadway to Hollywood with Groucho, Fred, and Ginger; 3. Radio nights; 4. From the 30s to the 40s with Kate, Bud, and Lou; 5. Bogie, Bob, and the boys at war; 6. The postwar movie scene; 7. Make room for TV; 8. Putting it together: Walt Disney introduces the baby boom to television; 9. The end of an era?