I don't know exactly how far I am from my stations... but I'm pretty close to them where I live, probably 20-30 miles at a quick guess. Still, this receiver is picking up some channels and locking with much weaker signals than my Satellite box does, and it doesn't seem to lose signal/breakup when a truck goes by or a stray cloud floats overhead either. All-in-all, seems to be a better tuner than my satellite box with the same antenna configuration. Picture quality is great. I have two Toshiba TVs. One is a 32-in standard TV that I've had for 10+ years, and the picture quality really makes that TV look brand new. Even the downconverted HD looks crisp and clear on it. As for my HDTV in the main room, I hooked the box up there too and it does a great job at 1080i. I didn't try 720p since my tv is 1080i native, so I suppose your mileage could vary.