Yup I listened to it as broadcast.
Brian mentioned that he wrote 'Sail On Sailor' with Ray Kennedy (No VDP or Jack Rieley mentioned) and that he played keyboards on it. Ok..it's Brian etc.... Bruce and David Marks were the only other BB's interviewed for the programme. Other contributors included Hal Blaine, Carol Kaye, Steve Levine, George Martin, Jeff Foskett, Graeme Nash and Bones Howe (Jan & Dean engineer).
Jeff's deconstruction of the vocal harmony arrangements on 'Warmth of the Sun' were most interesting.