There's not much info I can gather about the animatronic version, sadly. While some websites mention the robot briefly, there's a reddit thread with more information about the robot. I can't verify all the details people have mentioned, since I haven't seen video footage of the animatronic.
More footage, especially video footage, of this animatronic would be appreciated!
According to the
Also, a discussion posted by 96.5 Wave FM (radio station) on YouTube mentions the robot clunkily came out of something like a cupboard, and that the robot could bat its eyes and move its head. Two reddit users mention they recall being able to control the robot with a remote.
Kellie Sloane, the CEO of Life Education, stated the following in an interview:
"...in the[sic] 1979 when we first started and then shortly thereafter in the early 80s, Harold wasn't as cute and fluffy as he is now. He was this animatronic giraffe, right, basically this long neck would stick out and come out of the wall. Harold had bloodshot eyes and he was[sic] kinda droopy ears and that's because he hadn't been looking after his health, perhaps smoking or drinking the night before. So after he learned the lessons, Harold would re-emerge, looking a bit fresher and happier, with blue eyes."
Briefly, Healthy Harold is the mascot of an educational program about health for children. At some schools in Australia, children are invited into a van where they would be greeted by a person with a puppet version of Harold. Children are entertained by the puppet and taught about staying healthy. You could also visit a Life Education center to see Harold.