Having submitted this I have to ask myself whether there is really any point in raising it as an issue that can be reliably answered......ie is there really an accurate answer available !!!!! Or indeed accurately answered because after many attempts of raising the same question it seems to me that the answer is like ' beauty ' ........that is to say because so many people give different responses and the only one that really makes any sense is like "beauty", but in this case, being in the "ear of the beholder rather than beauty, being in the eye. Even Samsungs own site cannot offer any sensible answer ( i tried them because i want to get the best out of a Samsung T/V to match it with. It would be nice to get some replies but i am not holding my breath.