The Great British Sewing Bee’s Patrick Grant goes behind the scenes at the family firm making ceremonial uniforms for King Charles’s coronation. Tasked with creating thousands of bespoke uniforms for the big day, the Kashket family have been making spectacular ceremonial wear for four generations. As well as discovering the skill and craftmanship required to create these unique garments, Patrick also meets some of the men and women of the armed forces who will wear them