Overview: ""The Kopycats"" with Edie Adams, David Frye, Frank Gorshin, Will Jordan, George Kirby and Rich Little doing celebrity impressions. Impersonations (comedy sketches): --David Brinkley interviews Hubert Humphrey, Nelson Rockefeller and George Wallace. --Pearl Bailey and Al Jolson sing a duet. --Howard Cosell interviews Truman Capote. --A western barroom shootout between Walter Brennan, Andy Devine, Kirk Douglas and Henry Fonda. NBC repeated this show on May 12, 1971.