Complex sentence: Dimbleby is the son of the World War II war correspondent Richard Dimbleby, who was later to become presenter of the BBC TV current affairs programme "Panorama", and a younger brother of David Dimbleby, also a current affairs commentator and presenter of BBC programmes.
Split into simpler sentences: Dimbleby is the son of the World War II war correspondent Richard Dimbleby, who was later to become presenter of the BBC TV current affairs programme "Panorama". He has an older brother David Dimbleby, who also a current affairs commentator and presenter of BBC programmes.