I seem to have to reset my receiver almost daily because of pixelation on most HD channels. My signal strength on 103b ranges from 79 to 86 most around 82. My signal strength on the rest of them is in the 90's to 100. Also on tunner 1 the 8is o yet on tuner 2 its 79? Should 103b have a better signal? Also how would you do this without affecting the other strenghts? I am a novice at this so hopefully this makes sense.