with John Noakes, Peter Purves, Lesley Judd. Today you can discover where the Blue Peter team is off to for the summer expedition.

Valerie Singleton went to York where the famous steam engine, The Flying Scotsman, was leaving for Scarborough. This Blue Peter, Special Assignment episode was first broadcast on 28 April 1974.

Blue Peter has aired its final live episode, marking the end of an era in broadcasting as the BBC children's show moves to pre-recorded shows only after 66 years on air. It isn't goodbye for the ...