Guests: --Sly and the Family Stone - ""Love City"" (and possibly ""Stand"") --Dionne Warwick - ""This Girl's in Love with You"" --Mason Williams - ""Classical Gas"" --Lana Cantrell - ""Don't Tell Mama"" (Broadway production number) & ""My Way"" --George Burns (stand-up comedy) --Jack Carter (stand-up comedian) --Phillip Waruinge (boxer from Kenya) --Pompoff & Thedy (comedy skit with bumbling classical musicians) --Joyce Cuoco (child ballet dancer) Audience bows: James Garner; Bill Gargan