Guests: --Groucho Marx (host) --Morey Amsterdam & Rose Marie (comedians, from ""The Dick Van Dyke Show"") --Jose Greco (flamenco dancer with his dance troupe) --Jennie Smith (singer) - ""You and the Night and the Music"" --Gilbert Becaud (French pop singer) - ""More"" & ""What Now My Love"" --Lee Allen (roller-skating comedian) - performs a comedy routine about drunks --The Andre Tahon Puppets - sing ""I Feel Pretty"" in a mouse version of ""West Side Story"" --Bertha the Elephant (dancing, balancing elephant) Comedy sketch: --A society matron, played by Dee Hartford, isn't convinced that ""Dr. Hackenbush"" (Groucho) is a real doctor. It could be because all his nurses look more like chorus girls. Groucho Marx sings ""I'm Dr. Hackenbush"" in a the sketch.