That name again is Mister Plow!

Back in the 1970s in Ontario, there was a public service announcement that ran for several winters. It was a request for drivers to be mindful of the slow-travelling snowplows sauntering down the road.

In the ad, done with very simple animation, there was a prototype of a souped-up high-speed plow. The only problem was that "the gall darn thing gets stuck in the dad gum snow."

Does anybody remember that? I've searched the web, but can't find any references to it.