TV tuner streams low quality TV video
I would definitely use the EyeTV software. Now for the signal - over the air broadcast are great, but you have to triangulate the signal. So, if the nearest tower is on the opposite side of the building you're in, then the signal has to pass through the building before it gets to your antennae. I would look up the nearest tower on the web, get your Hybrid as close to that direction as you can, and/or add an actual antennae to the Hybrid - the device by itself is basically just a converter/tuner. I've also been able to plug in a cable or sat coax to it and gotten even better results. I'm still tweaking that setup.