Watch this video and more on True Royalty TV
A spectacular celebration of the Queen's Diamond Jubilee, showcasing 60 Royal Years' worth of pageantry, colour and a host of stars from across the world.
In Northern Ireland, Penelope Keith uncovers an unexpected treasure dating back to the Coronation at the magnificent Hillsborough Castle.
Presented by Penelope Keith, At Her Majesty's Service takes a fascinating look behind the scenes of the Queen's official Royal residences beginning with Her Majesty's beloved Windsor Castle.
In Scotland, Penelope Keith visits Royal residences Inveraray and Holyroodhouse even entering the bedchamber of Mary, Queen of Scots and meeting none other than The Queen's Royal Falconer.