As a student of UI design, I was always intrigued by the user interface used in You Don't Know Jack. If you're not familiar with the game, it's a demented in-your-face quiz show game. The first version was released circa 1995, and at the time, I don't think I had ever experienced anything quite like it on the PC. If you haven't played a version of You Don't Know Jack, do yourself a favor and try a recent version on your platform of choice to see what I'm talking about. Plus, it's fun.
This is a companion discussion topic for the original blog entry at: http://www.codinghorror.com/blog/2004/09/the-jack-principles.html