Trees are beginning to block the 119 degree satellite, but do I really need it? Both of my HR21-700s have AM21s connected to them, so I don't need to receive local channels from satellite. The trees are very tall in my back yard and there is no way to get anything back there to trim them. The signal strengths on 101 and 110 are all above 94. The signal strengths on 99 and 103 are all above 82, so I know my dish is alligned properly. the signal strengths on the 119 satellite has now mostly dropped to the low 70s. My neighbor just had a new dish installed that does not have an lnb for 119. So do I really need to see that sattelite? Should I have the new dish installed?