Here is a rarity via the virtual cathode ray tube: an interview with Duke Ellington filmed in Vancouver in 1970. The interview with Ellington begins about eight minutes in and occupies the rest of the programme. Johnny Mathis introduces the show and there is a performance by ABBA.
Description from the Youtube poster:
ABBA and Duke Ellington were guests on two Mike Neun CBC Vancouver TV series. Mike was the host of "IN THE ROUND" which national Canadian critics raved was "the best variety series of the season" in the summer of 1970. In the first show, world renowned jazz legend Duke Ellington dropped by for a rare casual chat and performed his classic composition "Satin Doll" with the Doug Parker house band. The series led to other Mike Neun CBC series, here introduced by singer Johnny Mathis in 1976, NEUN AT NIGHT, with ABBA performing their two massive hits, "Dancing Queen" and "Fernando." Ellington was awarded The Grammy Lifetime Achievement Award in 1966. At 76, he died of lung cancer in 1974, with over 12,000 attending the genius' funeral. Swedish pop/rockers ABBA (Agnetha, Benny, Bjorn, Anni-Afid) were one of the most commercially successful acts in pop music history, topping charts worldwide between 1972-1982, selling over 370 million records worldwide, making them one of the world's best selling artists of all time.