Ah memories! I once appeared on the Old Grey..it was very bizarre. There was a band called Nazareth who did a rock version of a Woody song, Del Shannon did an interview whilst nicely stoned and I sang two songs covered in a lengthy mass of hair which has long since left the top of my head. Everyone on the prog had a beard and Whispering Bob asked me a question to which my reply was; "Pardon?"
I have the tape to prove it.