Guests: actress Lillian Gish columnist Art Buchwald singer-songwriter Gilbert O'Sullivan improvisational singer Steve DePass and magician Milbourne Christopher. Highlights: Gilbert O'Sullivan performs "Alone Again, Naturally" and "Ooh Baby". *NOTE: Mason Reese 7-year-old TV commercial star will be the youngest co-host in the 12-year history of the Mike Douglas Show for the week of October 1, 1973.