Then I found it on YouTube. Wacko!
Leslie Nielsen hosts this retrospective of the Marx Brothers, from their early career on stage to their post-film career in television. their children and co-workers are interviewed, and numerous clips and rare footage are shown.The narration follows much of the family story as outlined by Harpo Marx in Harpo Speaks!, one of the truly great showbiz books. That is highly recommended, but in the meantime, enjoy this: