Sir David Frost’s famed transatlantic hopping is possibly matched only by his legendary congeniality.

One of Britain’s most venerated broadcasters, he remembers the early 1970s, when he was fronting two popular TV talkshows on two continents: “I would fly out [to New York] on a Monday morning, do a 90-minute show on the Monday night, same on the Tuesday, two on the Wednesday and then one on the Thursday before flying back to London for The Frost Programme on a Friday, Saturday and Sunday. It was eight daily shows in a seven-day week – beating the clock, as Bruce Forsyth would say.”