I have directv and my main receiver is in my bedroom (good receiver). it has dvr and works perfectly. my problem is that our other receiver is in our living room (bad receiver) and not all the channels come in. now when i unplug the good receiver the bad reciever works perfect. its tricky though because even with the good receiver unplugged and the bad receiver working if i turn on my overhead light i lose some channels. directv has been out to my house and replaced the receiver and still the same problem, they blame it on my houses wiring. anyway i enjoy directv but if i cant get it to work properly on both tvs then ill have to switch, any advice or tips on how to adress the problem will be greatly appreciated.