Picked up the 64 inch several weeks ago and its been great so far with several exceptions:
1. If the screen is displaying a screen with too much white, the screen will dim and the colors on screen will become darker. If the scene switches to something without lots of white on the screen, then the display will brighten up and the colors look nice and vivid. This becomes really obvious as my kids watch lots of cartoons or if there is an almost all white background and the screen is displaying a logo. If there is small amounts of white, such as a wedding dress, those whites are very bright and makes it really obvious the screen dims during overly white scenes.
An easy way to test, if you have a pc hooked up, go to any webpage, heck even this one and it becomes really obvious that it dims. If you don't have an hpc, and have Amazon Prime, any nickelodeon show will start up, show an all white screen with an orange sign logo, it dims as well, then right away brightens once the screen switches out of the logo intro. It really distracting and was hoping maybe there is a setting somewhere that i missed.
2. I cant for the life of me find a good calibration setting for Game Mode. I realize most people on these forums mainly watch movies, but there must be some one out there that has calibrated this for game mode. Usually, when calibrating my sets, i will take presets and adjust them accordingly to adhere to my personal set, but many seem to be for movie mode and were calibrated last year when game mode had too much input lag.
3. This may be normal and I just may be sitting too close, but, anytime i am playing a game and i pan the screen, or there is horizontal scrolling, think 2d side scroller, I see see the individual dots (or whatever sprite equivalent is on a plasma, phosphors?) on the screen. Is this a case of dirty screen effect? I recall reading that his effect diminishes with time, which i really hope it does as I mainly game on this set and is almost a deal breaker for me. Coming from a samsung pn65f8000, and sitting from the same distance, i know this wasn't there before as I tested with the same source material.
I have around 100 - 120 hours of screen viewing time on this set, and from owning prior plasma's know that the display quality improves with time, but the white dimming is really distracting.
Picking up the samsung pn65f800 several months ago, i feel this set is the better of the two compromises. Yes, i am a little OCD. The LED set has poor viewing angles, reflects light like crazy, and some motion blur during fast scenes.
I am still within my return period, and will most likely keep it, but the 1st and 3rd issue are really distracting, especially issue 3 for gaming.
Any input is welcome!!