Kate, the Duchess of Cambridge, is set to meet the cast and crew of the period drama Downton Abbey during a special visit to the set on Thursday.
Prince William revealed the royals are fans of the hit TV show. His wife introduced him to it after the birth of their son, Prince George, in 2013.
Kate, whose second baby is due late next month, will visit Ealing Studios in London to meet cast members including Dame Maggie Smith, Hugh Bonneville, Elizabeth McGovern, Lesley Nicol and Robert James-Collier and the show's creator Julian Fellowes.
Her visit will include the set where many of the servants' scenes are filmed, and she will unveil a plaque.
