Cameras go behind the opulent doors of Grantley Hall in North Yorkshire as its owners strive to transform it into one of the world's finest hotels. With rooms ranging from £1,000-£4,500 a night, Grantley strives to feel like a 'posh guesthouse' with down-to-earth Yorkshire hospitality. There's a look at the team who make the magic happen, from managers to chefs, housekeepers and porters