Back in 2011 Kate Middleton confessed to Downton Abbey star Jessica Findlay Brown that she and Prince William were both big fans of the show.
And now Kensington Palace has announced that the Duchess of Cambridge will visit her fellow (albeit faux) aristocracy on the set of the hit ITV show.
Kate (33), who is eight months pregnant with her second child, will meet the cast next week, just a few days after they had a visit from Sophie Wessex and Mexico's Angélica Rivera.
The majority of the show, written by Julian Fellowes, is filmed in Ealing Studios in London with some scenes filmed at Highclere Castle in Berkshire, although Kate will be visiting the studio set.
She will meet cast members including Hugh Bonneville and Elizabeth McGovern who play the Earl and Countess of Grantham, Phyllis Logan who plays Mrs Hughes, and, of course, Dame Maggie Smith who plays the Dowager Countess.
Filming for the sixth series of the drama is underway but it will be the first time Kate visits the cast on set. Her sister Pippa visited with her parents Michael and Carole Middleton back in 2011.
From swanky dinner parties and plenty of stiff upper lip to sassy Americans and impressive cinematography, the comparisons between Downton Abbey and Indian Summers were always inevitable.