I have been trying to dig through this thread to see if this has been answered already but I gave up and figured I would just post my questions. In November I pulled the trigger on the 55" KS8000. So far I have really enjoyed the TV but an noticing some "oddities" with settings. All of my gear (PC, FireTV, Blu-Ray and cable box) connects through an Onkyo HT-RC693 AVR and then the AVR is connected to HDMI 3 on the OCB.
Every once in a while I will be watching something (either cable or movie via FireTV) and about every 20 minutes the TV will switch from HDMI 3 to TV mode. When this happens, I hit the home button on the remote and then scroll over to to the input menu. However, nothing is displayed in the input menu. I can clearly select the option and there are selections there that can be made, but the actual inputs do not display within the menu. After this happened a few times I realized that the most recent input is one click over to the right so at least I can quickly switch back to HDMI 3, but the fact that the input options are not physically displayed is a little alarming.
I also just noticed today that out of nowhere, all of my picture settings were reset when on the PC input through my AVR. Everything filters through the AVR to HDMI 3 on the TV so I am not sure why settings would change based on the AVR input. While actually in the settings menu, if I change inputs between BD, Cable, PC and Game (FireTV input name), the settings are the same across all but the Game input. On that input picture mode changes to standard and features like 10 point white balance cannot be accessed.
Beyond that I do have to say that I really enjoy the picture on this unit. Just not sure what to do about these little oddities.