Hi, was just wondering if anyone could assist? I've noticed since my install that the HD channels look fuzzy/blurry like sd really. I have a new 55" Samsung UHD to, there are no issues with the tv, other sources look perfect as they should. In fact HD channels on V+ HD box on 32" Sharp to upstairs look considerably sharper. Also Netflix through TiVo buffers and cannot access 4K content, however there are no suc problems throug Samsung smart hub. Any help would be greatly appreciated. Thank you.