After 2 unsuccessful 42PDL7906 (at the low level the quality of the sound was corrupted…in particular the speech seemed to croak), I decided to change model and I bought the 40PFL8606M/08. This night (the first night) I discovered that the screen became a “bit” bright even if the TV were in stand-by. I switched off and switched on the TV and the light disappeared (please, pay attention, the light did not come from the ambilight system). This is not a good news….does anyone know the reason of this problem? I have 7 days to change again the TV…..in the case also the brand after 40 years. Thanks