--Bill Cosby (guest host, appearing with a band) - ""Ursulena (With Your Washing Machina),"" ""I've Got to Be Strong"" (sung by member of his group) & ""I Lost My Baby At the Dance Last Night"" --David Brenner (stand-up comedian) - jokes about airplanes; the moon shot; dating in New York City and King Kong --Ray Charles - ""Early in the Morning"" --Fanny - ""All Mine"" & ""Last Night I Had a Dream"" --Waylon Jennings - ""Lovin' Her Was Easier,"" ""Good Time Charlie's Got the Blues"" & ""Only Daddy That'll Walk the Line"" --Billy Preston - ""Will It Go Round in Circles"" & ""Outa-Space"" --Steely Dan - ""Reelin' in the Years"" --Taj Mahal - talks about ""Sounder,"" plays ""Cheraw"" on banjo & sings ""Texas Woman Blues""