What The Larkins could learn about nostalgia from All Creatures Great and Small

• That’s the way to do it, Pop Larkin. All Creatures Great and Small (Channel 5) put ITV rival The Larkins firmly in the shade with a finale which was damn near “perfick”. So how come the revival of James Herriot’s beloved veterinary stories have proved such a success, whereas the current adaptation of HE Bates’s Darling Buds of May has misfired so badly?