I've scoured the internet and polled co-workers. And thus far, my efforts have bore no fruit. I have found no record of the following, nor does anyone else remember it. But I know it existed.
Sometime around the mid 1970's, a major denim company ( not sure if it was Levi's, Lee or Wrangler) came out with a line of jeans that were built to withstand the punishment that kids dole out. It was called Super Denim, I believe. And to promote it, they had a robot character named "Super Dennis." Super Dennis was a robot that wore jeans. The TV commercials showed Super Dennis demonstrating how tough the jeans were by doing various calisthenics like deep-knee bends and squat thrusts, while also climbing rock formations, running, etc. I also remember stores like Sears and J.C. Pennys having life-size standup displays of the Super Dennis character.
Am I out of my freaking mind, or does anyone else remember this?