Last time Blue Peter, the long running BBC kids program, with a just as long history of pairing up with Doctor Who, ran a contest it was to design a TARDIS control console. The winner got a trip to the set in Cardiff, and their console made it into the show - Eleven and Sexy flew it in The Doctor's Wife.

This time around, children were asked to write a script that was both Doctor Who, and Olympic themed (for the forth coming summer games in London). The winners were three children from the Ashdene School in Cheshire, who got to visit the set, and most importantly, see their script filmed as a short episode which aired last week.

I can't imagine that this is canon, otherwise why wouldn't the Doctor have soniced an Angel before. But it is good fun, and it's always interesting to see what Matt Smith's hair can do next.
As a last note: The Intrepid Universe Traveller's Handbook is exactly two steps up and one step slightly to the left of The Hitchhiker's Guide to the Galaxy.

Via Topless Robot.