Denselow was educated at Leighton Park School, a boys' Quaker boarding independent school (now co-educational) in Reading, Berkshire, followed by New College, Oxford, where he studied English.
[1] After a student-trip to India with COMEX, the Commonwealth Expedition in 1965, Denselow first joined the BBC African Service as a producer and reporter working on current affairs programmes.
In 1980, when BBC Two's flagship news programme Newsnight started, he became a reporter for them.
[1] Denselow has reported from all over the world but with a particular interest in Africa, South America and the Middle East.
His report on Gulf War syndrome in 1993 won the International TV Programming Award at the New York Television Festival.