Considering how long ago ( in TV terms) the last PLASMA ie 2012 models 10 years later there not been much improvement on normal size screens , up to 50 inches . QLED and OLED are pointless because there really for bigger screens and hardly and difference in the picture anyway Standard sound systems on PLASMA tvs generally better or just as good as anything now (50 inch) The last Panasonic made was a fabulous TV in 2012 had that special screen ( on fitted on that particular TV . 2500 hz quoted for there flagship model even my 2011 model 3D had 60 hz but that one had the full black screen The best ever screen on any PLASMA and like mine 3 D . But the LX6090 Pioneer KURO 2008 model has always been regarded as the best TV ever made and that was in 2008 the reasons given full black screen superb audio from it , infact well over the top in connections Hold on that was 2008 . ( i did notice a new one up for sale for £600)The Panasonic flagship model of 2012 was there idea of beating Pioneer To be honest difficult to say what was the best but the KURO name still carries on ,well into 2020s . No PLASMA has been made since . The reasons was simple "cost" and weight and drink electricity . But a KURO or the 2012 model Panasonic will still give good service 12 years later . NO LED QLED will ever last that long ? maybe 3 years or 4 . Local charity shop had a Samsung 60 inch one for sale i must admit i was tempted to buy it £125 with 6 months warranty