Samsung LN-T4071F Owner's Instructions Manual page 51

Setting the Sleep Timer
The sleep timer automatically shuts off the TV after a preset time (30, 60, 90, 120, 150 and 180 minutes).
1. Press the MENU button to display the menu.
Press the ▲ or ▼ button to select "Setup", then press the ENTER button.
Press the ▲ or ▼ button to select "Time", then press the ENTER button.
2. Press the ▲ or ▼ button to select "Sleep Timer", then press the ENTER button.
3. Press the ▲ or ▼ button to adjust "Minute".
4. Press the ► button to select "Activation".
Press the ▲ or ▼ button to select "On", then press the ENTER button.
Press the ExIT button to exit.
Simply press the SLEEP button on the remote control for a Quick way to access the
sleep timer setting.
English - 4
TV Time
1/ 1/ 2007/ 12 : 00 am
Clock
Sleep Timer : Off
Timer 1 : Inactivated
Timer 2 : Inactivated
Timer  : Inactivated
Move Enter
TV Sleep Timer
Set sleep timer.
Minute Activation
▲
Off
▼
Move Adjust
TV Sleep Timer
Set sleep timer.
Minute Activation
▲
0 On
▼
Move Adjust
►
►
►
►
►
Return
Return
Return