A post I made much earlier in the thread that may possibly help you...
Service menu access...WARNING, DO THIS AT YOUR OWN RISK, CHANGING SETTINGS IN THE SERVICE MENU IS RISKY AND CAN PERMANENTLY DAMAGE YOUR TV. I AND AV FORUMS TAKE NO RESPONSIBILITY FOR ANY PROBLEMS OR DAMAGE TO YOUR TV IF YOU CHOOSE TO FOLLOW THIS GUIDE AND ENTER THE SERVICE MENU!!!
To access the service menu...
Put the TV in standby.
Press keys on the remote control once each, one after another in the following sequence...
i+
5
Vol +
Power
When the TV powers on you will see the hidden service menu.
In the menu the uptime/usage of the TV is shown under diagnostics information. At the bottom left there are three numbers. The rightmost number is the panel uptime/usage.
Hope this helps.