He did a series of PSA ads for the West Virginia Department of Health. All he says is, "Greetings from Down Under, West Virginians. I'm what happens when close relatives have sex with each other, Think about it."

I think he still does the odd commercial here in Australia and put out a standup comedy DVD a few years ago titled Wild Colonial Psychos.
"Oh, I did my thesis on life experience." - Anonymous Harvard Guy, The Simpsons.

I wish I knew. Maybe shortly after the show was off the air, he was in an Energizer battery commercial. Made me crack up everytime!
I loved how he called Sam J. Jones "Oiway" in his Austrailian accent.