Why does my Philips TV automatically switch off after four hours?

1. Press the [Home] button on the remote control to access the [Home] menu.
2. Use the cursor buttons [Up][Down][Left][Right] to select [Setup] and press the [OK] button to confirm.
3. Select [TV settings] and press the [OK] button.
4. Press the cursor [Down] to select [Preferences] and press the cursor [Right] .
5. Press the cursor [Down] to select [Auto Switch Off] and press the cursor [Right] .
6. Select [OFF] and press the [OK] button to confirm.
7. Press the [Back] button to exit the menu.

NOTE: You can only disable the 4 hours automatic switch off feature when you update the TV software to version TPM62E_2.11 (or later).