I LOVE LUCY EPISODE GUIDE
Lucy is frantic because she has promised Caroline Appleby that there would be "real movie stars" at an "open house" she envisioned, assuming, of course, that Mrs. Appleby would already be on her way to Hawaii.
Remembering that her New York chum is practically blind without her spectacles, Lucy and Ethel scheme to steal the eyeglasses and use movie star masks to fool her. Caroline arrives at the Ricardo suite ("Any stars yet?") whereupon Lucy quickly makes off with Appleby's glasses before excusing herself "to go next door and borrow a cup of sugar."
Meanwhile, down by the hotel pool, "sun-worshipers" Ricky and Fred encounter funnyman Harpo Marx, who is there for a benefit and kindly agrees to stop by and visit Lucy.
Disguised as Gary Cooper, Clark Gable, Jimmy Durante, and others, Lucy manages to fool the nearsighted friend. But suddenly, while Lucy is away changing into another disguise, Harpo Marx appears. Ethel assumes it's Lucy until Lucy herself arrives dressed as Harpo Marx.
After an unusal harp rendition of "Take Me Out to the Ball Game," Harpo and Lucy enact a classic mirror bit, re-creating the famous pantomime scene from one of the Marx Brothers' movies, Duck Soup.
The episode concludes with Fred and Ricky, dressed as Chico and Groucho, making an appearance, hoping to help Lucy impress Caroline, who has already left for Hawaii to join husband Charlie.
Special Notes: Lucille Ball and Harpo Marx had previously appeared in the Marx Brothers film Room Service (1938) for RKO. By this time, what was formerly RKO Studios was now owned by Lucy and Desi Arnaz and renamed Desilu Studios.
Bloopers: Though the mirror routine seems perfect, Lucy does make one error: she honks the horn with the wrong hand.