I squealed a little bit when I found this, because I had seen a tiny, tiny clipping of it on Myspace many eons ago. It's an interview from 1978, on a show called, apparently, "What's On". We find out that Jonathan shares my love of William Blake, and likes when he doesn't have to use a P.A.
God, he's adorable. God bless chatham43 for finding and posting this.