[mindcrime]

Hmm... this article[1] cites an interview with Mike Judge where he says it mean "Test Program Set" when he was an engineer.

Anyway, I've seen more than a few people jump to the conclusion that it stands for something to do with the "Toyota Production System" which is unfortunate.

[1]: http://mentalfloss.com/article/57338/what-tps-report

[Ambele]

That's too bad. It's quite funny thinking Toyota Production System is where TPS reports come from because it's so believable. Even though Toyota switched to Agile-ish methodologies, they still produce 20x the documentation and paperwork that the Waterfall method produces!