Mumble Bumble is a 67 x five-minute co-production between Egmont Imagination and Cinar. It follows the adventures of an imaginative blue hippopotamus and his best friends, Chic'o, the inquisitive chicken, and Greens, the busy frog who never looks before he leaps. The idea, which is designed to be both educational and entertaining for a preschool audience, was devised by an architect called Christian Skjott. In Canada it was broadcast on CBC Television.