LENNY HENRY, I thought to myself as the first strains of the Velvet Underground broke upon the early morning air: what better choice could there be to front up a programme about Andy Warhol? He is certain to be exuberant. He will doubtless be funny. He will, above all, bring a note of scepticism to the parade of art-world eminences talking about Warhol’s debt to Marcel Duchamp. In fact, I was wrong about this and, a few flourishes excepted, Andy Warhol: Time Regained (11 September) turned out to be quite as reverential as any other Warhol extravaganza brought to radio.We found our guide to the weird and wonderful planet colonised by Warhol during his 40-year career closeted in the seven-floor Pittsburgh museum that now hosts the great man’s archive. Here, as interview fragment