Samsung UN46ES8000 E-Manual page 9

Unwan_!:ed Powe_ ng Off
if your Samsung TV appears to turn off by
itself, there may be an issuewith either your
Timer settings or your Eco friendly No Signal
Power Off feature.
First make sure Sleep Timer is not
accidentally set. The Sleep Timer turns off
the TV automatically after a certain period
of time has passed.
Seep T me_: Syss:_em -_ Tree -_ Seep
Tme_ _
if the Sleep Timer is not activated, you may
have engaged the No Signal Power Off or
Auto Power Off feature.