Plot: Host: Groucho Marx --Margaret Dumont (comedian, in her last TV appearance) --Groucho Marx and Margaret Dumont perform their comedy classic ""Captain Spaulding,"" a number from ""Animal Crackers. "" --Melinda Marx (Groucho's daughter) - ""East Side of Town"" --Groucho and Melinda Marx - ""Play a Simple Melody"" --Gordon and Sheila MacRae sing ""I Want to Be with You"" --Sheila MacRae - ""Hello Dolly"" and ""Happy Days Are Here Again"" --Gordon MacRae - ""More"" --Shecky Greene (comedian) --Miriam Makeba (African folk singer) - African Game Song --Lydia Torea (flamenco dancer, with her troupe) - ""Dos en Ritmo"" & ""Un Pinto"" --Don Saunders (comedian from Scotland) --The Four Kents (trick unicyclists from Denmark)