Plot: Guests: --The Jackson 5 - ""Stand,"" ""I Wonder Who's Loving You Now"" & ""I Want You Back. "" --Lainie Kazan - ""Have I Stayed Too Long At The Fair?"" --John Davidson - ""Something"" & medley (""Get Together"" & ""Games People Play"") --Wayne & Shuster (comedy team spoofing commercials) --The Muppets (Big Bird dances with 6 bird watchers) --Topo Gigio (puppet talks about his Christmas list) --Guy Marks (stand-up comedian) --El Conquistador Violinists (instrumental band, from Puerto Rico) --The Mecners (acrobatic act, top Polish circus act) Audience Bows (cameos): Diana Ross; Leroy Yarbrough (1969 Nascar Champ Driver); Etta Cortez (Editor Of Vegas Magazine); Gig Young