The series remarkably resembles in visual style and ethos a Children's Book and TV series proposal "The Great Wungle Bungle Aerial Expedition", featuring characters specifically dubbed "The Koala Brothers" and focusing on the adventures of altruistic animal outback aviator rescuers in homemade flying contraptions at a comical desert airstrip, rescuing others or helping out friends with no thought of personal reward. The book first appeared along with accompanying specially designed animatronic character props at the "FirstState88" NSW Govt exhibition in Darling Harbour in Sydney as part of the Australian Bicentenary in 1988. The original three "Koala Brothers" characters first appeared here as supporting characters.