Joni Mitchell was forced to choose between appearing on this show, which was her first national television appearance, and appearing at Woodstock. Her manager forced her to appear on this show when he saw how bad the traffic was going to and from the site. However, the night of her appearance, several of the acts who appeared at Woodstock, including Jefferson Airplane, David Crosby and Stephen Stills showed up unannounced while she was being interviewed and gave their first-hand accounts of what it was like at the festival.
Jerome Rodale, a pioneer of organic gardening and founder of "Prevention" magazine, actually died of a heart attack while being interviewed on Cavett's show in 1971. Cavett at first thought his guest had dozed off to sleep. During the interview, Rodale stated his intention to live to be 100. He only made it to 72. The show was never aired.