Hello all, I'm hoping someone here can advise me... I bought a sony television about a year ago - KP53HS30 - and it's been great to me. During DVD's the picture is as nice as I could want. However, i've been wondering if I can improve the picture during DirecTV watching, and VHS watching... Would a line doubler like the DVDO Iscan Pro help me, or is the chip in the Sony already as good as this? I haven't been able to find out much about the innards of this TV. Thanks in advance!