Good Riddance (Stop-motion animated short series, 2003)

Good Riddance is a series of 5 shorts produced in 2003 by Australian animator Nick Hilligoss, and produced by the Natural History Unit of the Australian Broadcasting Corporation. They follow the exploits of Eco, a man who runs an environmentally friendly pest control service, and the way he uses various aspects of nature in his business. I saw these shorts when they aired on BBC Kids here in Canada sometime around 2010. From what I've found, 5 episodes were produced by production company Bullfrog Films, dealing with Air Pollution, Flies, Snails, Termites, and Rats respectively. All of these episodes have the first minute to minute and a half uploaded online via the Youtube channel of Bullfrog Films. I've also found what appears to be a place where one can buy these films, as well as a proof of a screening of them as recent as January of last year. Further help in this search would be very well appreciated. 

Youtube Links: 
www.youtube.com/watch?v=w8xAYjo3uLg
www.youtube.com/watch?v=-0oBNq6JYw8
www.youtube.com/watch?v=LFr8rU7vs7I
www.youtube.com/watch?v=L5gSyfZi8SE
www.youtube.com/watch?v=gCkVl65ksmI

Good Riddance on Bullfrog Films: 
www.bullfrogfilms.com/catalog/grids.html

Film Festival Screening:
www.qagoma.qld.gov.au/cinema/screening/animation-spotlight-bunch-of-fives-and-good-riddance!-series2-2022-01-03