I need some advice in trying to understand a signal issue on my two Tivo Premieres. Here's my TV fool location: http://www.tvfool.com/?option=com_wrapper&Itemid=29&q=id=0b860b591207fc I'm having trouble with the KSNW-DT signal -- the closest and presumably the strongest signal of all of them. (It's only 5.5 miles line-of-sight.) The signal strength meter peaks at around 70 and then will drop to non-existant and then come back again. I get visible pixelizing and freezing even when the signal doesn't drop below 60. All other signals are rock solid which leads me to think this is not a "too little" signal issue, but maybe "too much?" Or maybe there's some other signal causing interference? How do I learn what I need to do to stabilize that channel? I'd hate to have to introduce something into the system to reduce the signal strength because I'm just barely picking up the weakest station. (It's strength stays in the yellow color below 50, but the picture is rock solid and rarely breaks up, if at all.) How do I learn what to try next? I've tried adding a preamp but that didn't help anything at all -- as a matter of fact as I recall I think it reduced the signal strengths overall. Maybe it wasn't the right kind of preamp?