Huw Edwards introduces live coverage of the world-renowned military spectacle from Horse Guards Parade to mark the official birthday of Her Majesty The Queen. This is her 66th birthday parade as sovereign. This year it's the turn of the 1st Battalion Coldstream Guards to troop their colour in this annual display of music and majesty. After the parade, members of the royal family join the Queen at Buckingham Palace to continue the celebrations with the famous balcony appearance and RAF flypast.