Oneobgyn,
I don't think grounding will help if it is EMI/RFI that is the worry. Only adequate sheilding will prevent this and perhaps your ARC has such sheilding. It is this same type of sheilding that one looks for when purchasing a center channel speaker for HT.
For folks like me who still insist on a CRT HDTV it can be quite a problem. I must keep my A/V receiver at least 3 feet from my TV or it effects the action of the photon gun. Only moving the receiver away and de-gaussing remove the effects.
I don't think grounding will help if it is EMI/RFI that is the worry. Only adequate sheilding will prevent this and perhaps your ARC has such sheilding. It is this same type of sheilding that one looks for when purchasing a center channel speaker for HT.
For folks like me who still insist on a CRT HDTV it can be quite a problem. I must keep my A/V receiver at least 3 feet from my TV or it effects the action of the photon gun. Only moving the receiver away and de-gaussing remove the effects.