Help-Line in my RPTV-need conditioner for HT

Tvad, I also get lines on DVD. I tried all of the above. I also had a dedicated line put in. Direct to the wall is the worst. My modded powervar is better, most of the time, but, I hate the lines whenever I see them. I can P/U a BPT 3.5 sig for a good deal, but wanna make sure before the hassle, it will work. Thanks for the suggestions.

Tvad, you are funny, no excuse here for purchase. I have an elite HD530 in my bedroom, same 127v current, no lines. My HT room is on the same level of my utlily room, and next to the utlilty rom in the garage. I think it is in the lines. I have also had the techs over from tweeter to calibrate, and check the set out. Now, may be they are lying to me(I hope not)OK, maybe it is a minor excuse. I am searching.....HELP