Hi, I have just inherited a Samsung smart tv to replace existing Sony tv. The previous tv received its signal via a sky box where the cable was split in two as it's serviced two TVs. On installing and tuning the Samsung it picks up digital channels and shows via DTV Air with a great picture quality. It shows the sky channels via ATV with a very poor picture quality. I'm hoping this isn't about signal strength as previous Sony the method worked great and the sky channels were almost equal in quality. Any ideas as to a possible solution? I'm new to Samsung and struggling to find my way around.