The programme was a spin-off series from Blue Peter which had featured record breaking attempts overseen by the McWhirter twins.
[2] Producers of the series over the years were, Alan Russell (its creator), Michael Forte, Eric Rowan, Greg Childs, Annette Williams and Jeremy Daldry.
Other hosts included Dilys Morgan (1973), Fiona Kennedy (1983–86), Julian Farino (1985–86), Mark Curry (1995) and Ronald Reagan Jr.
[3] After Castle died in 1994, the show was hosted by Baker and Akabusi, then Linford Christie took over in 1998 with co-presenters Jack Lattimer, Jez Edwards (1998–2001), Kate Gerbeau (1998) and Sally Gray (1999–2000).
Castle was joined for this extended edition by virtually all the BBC's children's TV presenters for music and dance numbers, which generally culminated with the ensemble cast performing a classic story.