I am feeling really old now .

I've "walked like a penguin" often in my life, and not with consistent success of remaining vertical. I live in a part of America where this product would be considered an exotic novelty from foreign parts...like luxury cars having heated seats.
This commerical here has been airing locally (and apparently nationally) for decades.
http://www.youtube.com/watch?v=3QjTIm-vSKg

I never saw it before.

I remember it. It ran frequently during the evenings.

Never seen it. Then again, from 85-88 I lived outside the country, and from 88-07 I lived on the South Carolina coast where icy sidewalks weren't an issue.

Holy shit. I remember that commercial!