Guests: --The Bee Gees - ""Words"" --Lucille Ball guest appearance: (1) Lucy (onstage) chats with Ed; (2) On film: ""Yours, Mine & Ours"" film clip with Henry Fonda; (3) Lucy introduces 18 children from "" Yours, Mine & Ours"" who sing. --George Hamilton - ""At The Crossroads"" & ""Dock Of The Bay"" --Stiller & Meara (comedy team) --Tony Sandler & Ralph Young - ""Cotton Fields"" --Fran Jeffries - ""Sunny"" medley --Fran Jeffries, Sandler & Young - ""Duet For Three"" --Jackie Kahane (stand-up comedian) --The Five Bearded Irishmen from Dublin (traditional Irish musicians) --Audience bows: Ross Hunter; Marine Congressional Medal of Honor Recipients (Vietnam)