Examine the ceremony and traditions at the heart of a royal wedding, which even a modern couple must follow. Experts, commentators and guests dissect the finer points of royal protocol, while Lucy Worsley surveys the history of royal marriages.

Join Vieira and Baker, and experts, commentators and guests for the final countdown. Anita Rani reports from Windsor, where crowds gather for the celebrations. Historian Lucy Worsley explores Kensington Palace, soon to be Meghan and Harry's new home.