I Love Lucy S04 E16 L.A. at Last

"Vitameatavegamin - Spoon Your Way To Health!"

Lucy arrives in Hollywood with stars in her eyes. She heads for The Brown Derby, a celebrity hangout, where she encounters Eve Arden and William Holden -- and inadvertently presents Holden with a custard pie in the face. Hollywood legends William Holden and Eve Arden guest-star as themselves.