Marson won his first Blue Peter badge in 1972, which influenced him to pursue a career with the BBC in 1988.
Following five years as a freelance worker as a producer and director for such companies as Disney, Planet 24, and London Weekend Television, Marson returned to the BBC to direct Record Breakers[REF] and Tomorrow's World,[REF] eventually joining Blue Peter as a producer in 1998 [REF].