For six years, Helene Hanff held captive audiences all over the world with her monthly broadcasts on the BBC's Woman's Hour. In five-minute vignettes, she managed to convey the essential New York City: life in a high rise apartment building (the last small town in America); annals of Chester-the-Sheepdog, Duke, the German shepherd, and their friends; the tree-lighting, magic and music of Christmas in New York. We meet Arlene, Hanff's high-flying friend...