Florence, who grew up in Notting Hill, London, said he had a sleepless night before the recording as the rehearsal had not gone smoothly.
“The Blood Donor episode run-through went without a hitch, but the Radio Ham was a bit more problematic, it had so many cues and sound effects which I was in charge of and it was a nightmare,” he said.
Florence said his job entailed him running from the recording booth to create sound effects via records and him making physical sounds, such as fastening locks, moving chains and ringing door bells and knockers.
“The recording day went like a dream, although it was scary for me with all the stars there and a live audience,” he said.