appearing in the 11th season of “The Real Housewives of Beverly Hills,” giving viewers a rare glimpse into her personal life.And now she is taking fans on a tour of her festive Bel Air home, decorated with all the holiday trimmings — and then some.“I normally start decorating in October,” Hilton, 62, told Architectural Digest in an interview, “then keep adding until December.”According to the famous mom of Paris, 40, and Nicky, 38, she thinks about the Christmas season all year long.Her