Queen Elizabeth II at 80 [multiple clips]

BBC Radio 4 commemorates the 80th birthday of Queen Elizabeth II on April 21st with a range of programmes covering royal news coverage and biographies, humour and satire, and royal tours and public meet-and-greets. The week culminates on Sunday April 23rd with a Service of Thanksgiving in St George's Chapel, Windsor, where Her Majesty the Queen and members of the Royal Family gather for a service to celebrate the Queen's birthday.