THE DICK CAVETT SHOW
TCM, 3:30 p.m. ET
Knowing this is a rare telecast of an even rarer TV conversation only makes it sweeter: Here’s a nice bonus, as part of today’s TCM salute to Groucho Marx. Presented, in its entirety, is Groucho Marx’s appearance, as the only guest, on the Aug. 13, 1969 edition of The Dick Cavett Show.