According to Billboard magazine (2 Sept. 1972), Donny Hathaway was interviewed by Wink Martindale on KMPC in Los Angeles when he was promoting Come Back Charleston Blue soundtrack.
A very rare promo picture taken during Vibrations produced by WNET 13 on January, 14th 1972. Donny sings He Ain't Heavy, He's My Brother, a song from his second album.
Click to enlarge On June 14, 1972 Donny Hathaway played at the Vibrations show broadcasted by PBS. If someone has a copy of the show or knows which songs he played, let me know (contact.hathaway@gmail.com).