Joe wants to know the difference between a TV and a monitor. Leo says a TV has a lower resolution and a tuner, whereas a monitor has higher resolution. A TV isn't designed to be as crisp because the viewer will be farther from it. A monitor is designed for up close viewing while working on a computer.
Joe also wants to know why we haven't gotten a holographic TV yet. Leo says to hang in there because it's probably coming. 3D TV is on the verge of glasses free technology that was founded by Michael Faraday 150 years ago, but was never perfected. It's called Light Field technology, and it sends different images into your eye. Once that comes into fruition, we'll be that much closer to holographic TVs too.