I just installed this on my HDTV and I am at a loss of words at how incredible the picture quality is. I cannot believe that these local HD channels and other additional channels I didn't even know are available are free. The picture quality is comparable if not better than Time Warner and Direct TV whom I had for the past 10 years.I didn't do any adjustments other than to extend the rabbit ears out. I plugged it right into the tv and I ran a scan of channels and viola in less than 5 minutes I was enjoying high quality HD local channels. I place the antenna on top of my entertainment center cabinet which is about 6 feet tall.Excellent product!