Thanks for all the helpful info. I have had a 537H which we bought new, probably in 2006. It is a good set and we continue to enjoy it.
I had to buy a replacement remote control when the original failed to change volume earlier this year. The replacement was a little different but was an Olevia model RC-LTU. It is nice to see these are still available at a cheap price as the remote codes were not available on some of the other remote controls I looked at. Other than that, it has been fine.
I found the service menu instructions in the thread (SOURCE, VOL- and CHAN- pressed at the same time and held, on the TV, not remote. TV is on or you get a factory reset!). I then changed the backlight setting on the dark room lighting. That setting, 'Normal', was 96 and I set it down to 70.
After exiting using the MENU button, I switched the color tint to Native, and changed the contrast up a little. I am very pleased with these new settings. Although I had used Native before, I had been using 6500 most recently). The colors appear realistic and the blacks are great. I am looking at a snow skiing video and the snow, blue sky and bluish lake with the sun on the people's skin looks so authentic.
I am looking for a copy of the firmware. I had updated the TV once before but I think there was another update after my 537-B11-061121A. I sent Berniez a PM, as I have not found any working links for the version for the 537H.
Edited by SiAnth - 12/24/13 at 1:35pm