Some of the guests who appeared on "The Smothers Brothers Comedy Hour" were Bette Davis, Tony Randall, Kate Smith, Eddie Albert and Eva Gabor, and Inger Stevens. Some of their musical guests were Pete Seeger, The Turtles, Janis Ian, Jefferson Airplane, Nancy Sinatra, The First Edition (with a young Kenny Rogers), Donovan, Peter, Paul and Mary, Joan Baez, Jennifer Warnes, Harry Nilsson and The Buckinghams. Glen Campbell regularly appeared on the show, and hosted a summer replacement series, "The Glen Campbell Goodtime Hour".