For over 20 years it delighted kids of all ages. Rainbow was a phenomenon; ITV's longest running kids show and the one which gave us the unforgettable Zippy, Bungle, George and Geoffrey. But it was far more than that. The cast of Rainbow were megastars who lived the TV dream to the extreme. From their impoverished beginnings as a warm-up act to the madness of fame, celebrity groupies, jewel-encrusted dungarees and tragic Marmite dependency.

Now at last the true story can be told, and it will shock children's entertainment to its very core. Welcome to Rainbow Climbing High - thirty years of psychedelic mayhem.