He was also the show's producer for four runs: * Episode 1044 (18th January 1971) to Episode 1059 (10th March 1971) * Episode 1416 (12th August 1974) to Episode 1421 (28th August 1974) * Episode 1528 (8th September 1975) to Episode 1535 (1st October 1975) * Episode 1744 (3rd October 1977) to Episode 1747 (12th October 1977) Finally, he was the programme's script editor for Episode 1415 (7th August 1974) and for a near-continuous run from Episode 1426 (16th September 1974) to Episode 1902 (11th April 1979).