There was a Prince mention on 'Top ten 70's soul' TV show (Channel4 UK).
Apart from the likes of George CLinton, Bootsy Collins, James Brown, Stevie, and many others who made the excellent top ten - Prince (Rave album cover shown) got a quick mention for working with members of Family stone/GCS.
Others mentioned were Chaka, Patti Labelle, Larry Graham, Hendrix (earliest known footage with Isley Bros.), Al Green, Curtis Mayfield, O'Jays, Isaac Hayes, Stylistics and Marvin Gaye.