Chief Beefeater Peter McGowran hopes that his boss, Her Majesty The Queen, will watch The Repair Shop tomorrow night as he completes a mission of national importance.
Peter, 64, appears in a Jubilee special of the show, arriving in full uniform with a very special lantern steeped in Royal tradition that is used every night at The Tower of London.
The 103-year-old latern - which is made of solid brass - was given to the Yeoman body as a gift by a visiting regiment in 1919, and is part of the 700-year-old Ceremony of the Keys.