TVUplayer works like this: Someone (called a "broadcaster") records live TV on their computer, then sends out the stream to the world at large. From that point, the more people who decide to watch the station, the better the "signal" you'll receive, since TVUplayer uses peers to redistribute content similar to bittorrent (or that's how I understand it). That means it's going to be uploading plenty while it's running (and believe me, it did). What I was most impressed by is that TVUplayer was less than 1 minute behind my live TV, which is pretty impressive.
