Ryan McAvoy said:
'Round The Bend'
It was a late 80s satirical English children's show about a Crocodile and a rat who lived in a sh*t smelling sewer and broadcast wee and bum based spoof cartoons. Quite surprising it was ever broadcast really.
I like it! You could never have gotten away with that on tv in the U.S. back then. Not too surprised to see that Spitting Image was involved.