My vote would go to the Panasonic Z65 made in 2013 600 hz But a lot more than just that the infamous total black screen ( something QLEDs have a problem with even now ). It was the very b est PLASMA ever made according to what wi fi . in 60 inch form too. The downside ( today) was that they eat power . But how long would they last , according to a expert on TVs . They had a genuine life span of 35 years in normal use. ( the main reason why manufacturers stopped making them ) Lovee to see a QLED last 5 years Life span on the latest TVs is around 3/5 years at full operative working . China nev er made them for this reason. There was a debate whether the KURO was better but i doubt it Pioneer stopped making them in 2010 . Panasonic however made at least 3 models after that . Including the two i have or had as sold the 2010 P46 , but still have the P50 2011 model . can you imagine a TV lasting 35 years ? Most TV manufacturers would be out of business now infact all the Chinese ones would be in one swoop . So this TV gets my vote as the greatest TV ever made and in second place the 2009 Pioneer KURO> By the way new KUROs still come up for sale last one i saw they want £250 brand new last year 50 inch model from a warehouse in Germany i believe Love to see a Z65 or a KURO against the very best Sony of today same size screen ie 50 or 60