Overview: Guests: --Mary Hopkin - ""Morning of My Life"" & ""Those Were the Days"" --Gary Lewis and the Playboys - ""Main Street"" --George Carlin (comedian) --Helen Hayes (reads preface from her book) --Ed Ames (singer-actor) - sings a medley of love songs incl. ""Gentle On My Mind"" & ""The Look Of Love"" --The Doodletown Pipers --Kuban Cossacks (Cossack dancers) --Judge Dewey Markham & Pigmeat Markham (comedy sketch) --Audience bows: Don Rickles; Jerry Vale; Perle Mesta