The Cosby Show: S4E13 - The Show Must Go On

<p>The Show Must Go On in a really weird way with vaudeville tribute show. We also says good bye to Robert, yes this is the last time we see him on the show. End off with the laundry list of guest stars in this episode.&nbsp;</p> <p><br></p> <p><strong>Synopsis: Cliff takes Rudy and her friends to a vaudeville tribute show; Vanessa’s ex-boyfriend proposes marriage.</strong></p>