Tony Parsons has been a rock journalist, a TV host, and a columnist for The Mirror. His novel Man and Boy has been such a big hit in Britian, his name was the correct answer on a recent episode of the game show "The Weakest Link." It's the story of Harry Silver, a 30-year-old TV producer in London who suddenly finds himself raising his 4-year-old son as a single father after his marriage dissolves. The novel is more than a little autobiographical. Parsons raised his own son alone after a much-publicized divorce in the mid-1980's. And like his protagonist Harry, Parsons idolized his father, a decorated World War II hero. He told Minnesota Public Radio's Tom Crann the daily details of life as a single father were only the beginning of the challenges facing Harry: