February, 1972. Appearance of David Rosenboom on Mike Douglas Show with John Lennon and Yoko Ono as co-hosts, and Chuck Berry joining them. The featuring was preceded by personal meetings of David with the couple. As the story goes, David was staying in New York, in between his first and second years in Canada as a faculty at York University, and one day John’s representative called him, because John and Yoko were seeking to learn about Rosenboom’s recent use of brain biofeedback for musical performance. This was likely prompted by the recommendation of John Cage who lived in the same area and/or pioneering ethnomusicologist Fred Lieberman. After private meetings, they demonstrated results in an episode during the week-long series of shows hosted by John and Yoko. This programming by John and Yoko, supported by Mike Douglas, was a monumental development for American daytime television. (These images are snapshots taken by Rosenboom of his television screen when the show aired.)