I don't if it is just me but I am becoming more and more concerned at the increasing numbers of people who are accessing, or being encouraged to access, the Samsung service menus for a variety of reasons. I fully understand and I sympathise with those who have received (or perceive that they have received) the wrong panel or a different panel than was advertised. Equally, I sympathise with those who cannot tolerate the dynamic dimming feature and wish to turn it off. However, the rush to do something about this has seen a massive rise in the number of posts throughout the Samsung threads by people blundering into the service menu and making all sorts of changes that they should not be doing. It is also clear that most people who are being encouraged to do so have limited or no technical skills for what they are doing. Let's be clear here - if you enter the service menu and make any changes you will invalidate your warranty. If something goes wrong with your TV, either related to the changes you have made, or in some cases, if an unrelated fault occurs, your may have to bear the cost of any repairs yourself and with plasma and LCD TVs these costs could be substantial. By all means go into the service menu, by all means make whatever changes you wish but be aware of the consequences of doing so.