Over a decade ago, the massive video screen at AT&T Stadium, the home of the Dallas Cowboys, was the talk of the world. The giant 1080p video board spans 160 feet wide and contains 30 million light bulbs. Yep, you read that right, 30 million light bulbs! For perspective, if you changed one light bulb every second without stopping, it would take an entire year to change the video board. Incredible. The fascinating part about viewing the Texas-sized screen in person is that your eyes are ...