H21 - 771A HR34 - 776 H25 - intermittant 771A H23 - 771B H24 - intermittant 771A HR20 - intermittant 771A constant pixelation and audio dropouts across the board with the other receivers dtv is sending me a 2nd power inserter, theyre 99% sure it will fix the problem. i built the setup in the basement for football sundays specifically; i dont want to miss 3/8 possible games because that box doesnt receive any signal again. it occured to me that my setup diagram is perhaps not 100% accurate, and they may or may not all be on the same 8-way, i tried to test that but so many boxes keep intermittantly going out it is tough to tell without trying them 1 box at a time. what i have found works, is if i unplug a few of the receivers upstairs from their power supply the ones in the basement start coming back online, and do not pixelate as often. does anyone agree with the power inserter solution? my dad has 8 HDTV at his house with an HR34 & HR24 in his setup as well with only one power inserter, difference being it is plugged into the middle port on the SWM16 and mine is off one of the legs before the HR20.