The latest episode of HBO’s “The Gilded Age,” largely set in Newport, includes a sweeping view of Chateau-sur-Mer as a carriage arrives at the house. But when the characters go inside, we recognize not the interior of Chateau-sur-Mer but that of Belcourt, another Bellevue Avenue mansion. And when the action shifts to the kitchen area, it is the kitchen of Marble House that is shown. Three different houses, all used to depict the Newport home of Mrs. Caroline Astor – which in reality was yet another house, Beechwood! Ah, the magic of television. hbomax hbo gildedagehbo #newportmansions #GildedAgeHBO #gildedagemansions #gildedagemansion #gilded #gildedage