Radzi Chinyanganya meets special effects supervisor Danny Hargreaves in a celebration of over 50 years of the time lord. The presenters catch up with the sonic device competition winners to see how they got on when they met Peter Capaldi and saw their inventions in action. Plus, a look back at some of the best Doctor Who and Blue Peter moments from over the years, and a performance by Brett Domino.
Labels: Blue Peter, blue peter special, doctor who blue peter, dr who blue peter