--Gary Puckett and the Union Gap - ""Lady Willpower"" & ""Young Girl"" Other guests: --Richard Pryor (stand-up comedy) - imitates his mother and grandmother, talks about getting revenge on the neighborhood bully. --Rodney Dangerfield (stand-up, doing his ""No Respect"" routine) --Diahann Carroll - ""At The Crossroads"" & ""Elusive Butterfly"" --David Frye (comedy, impressions of William F. Buckley, Presidents Nixon, Johnson, RFK.) --Shani Wallis - ""Alfie"" & ""High"" --Jay Marshall (ventriloquist) --Young Americans - ""Happiness"" & medley (""A Spoonful of Sugar,"" ""Back In the Old Routine Minute Waltz,"" ""Green Sleeves,"" and ""Raindrops"") --Audience bows: Leonard Sillman, Imogene Coca, Capt. Robert F. Foley (thetvdb.com)