When that station closed in 1994 CBBC serials moved to Radio 4 on Sundays from 7 to 7.30pm until Easter 1998 when it was replaced by another episode of The Archers.
"Go4It" started in 2001 and was originally produced by Jo Daykin and hosted by Matt Smith and included Cromarty the space cat and many jokes.
When Harwood was off on holiday there were guest presenters like Kirsten O'Brien, Natalie Barrass and David McFetridge.
A typical episode featured a guest author or poet and often a trip 'on location' to an event related to children's literature.
It could be considered a junior version of Radio 4's Book Club with an author being asked questions by the young fans in the studio: the 'g4it-ers'.