ABC British

Days before the celebrations surrounding the Diamond Jubilee, ABC News marks the monarch's historic 60-year reign with an intimate portrait of Her Majesty Queen Elizabeth II from those who know her best. Anchored by Katie Couric, the two-hour special edition of "20/20" will feature interviews with her grandsons, TRH The Duke of Cambridge Prince William and Prince Harry, The Duke of York Prince Andrew, his daughters Princesses Beatrice and Eugenie, as well as several members of The Queen's staff, who all share personal observations about her daily life beyond the glare of lights and cameras. The program will also give viewers special access inside Buckingham Palace.