Hello, I currently have a Panasonic 50 inch VT30 plasma. We watch a varied mix of TV including a lot of dated SD content. The plasma handles it well and I have no issues with picture quality. I have loved this TV. I have been browsing 4K OLED 55 inch TVs in my local Waitrose (mostly LG) and whilst the 4K and HD content looks good, as soon as I switch the TV through the channels to some of the channels rebroadcasting old TV programmes, the picture looks awful. Far worse than I am experiencing with my old plasma. I do stand back a distance (I sit about 5m from my screen at home), still the picture is obviously poor. I have read that Sony and perhaps Panasonic deal with it better. Has anybody got any recommendations for an OLED that will give me the best of all content?