Our fourth installment of the Inside Television’s Greatest I Love Lucy podcast. In these never-before heard interviews, we get deep behind the scenes of I Love Lucy from the people who were actually there. Today's exclusive interview is with the very last surviving adult member of the supporting cast Doris Singleton. She shares working on the show, Harpo Marx, George Reeves, her relationship with Lucy and why she thought Vivian Vance was depressed most of the time during the series' run.