Samsung LN-T4669FX - 46" LCD TV Owner's Instructions Manual page 50

Option
2: Settin_ the Clock Automatically
The Clock can be set automatically if you are receiving a digital signal.
t. Press the MENU button to display the menu.
Press the A or _r button to select "Setup", then press the ENTER button.
Press the A or T button to select "Time", then press the ENTER button.
2. Press the ENTER button to select "Clock".
3. Press the ENTER button to select "Clock Mode".
Press the A or _r button to select "Auto", then press the ENTER button.
4. Press the A or T button to select "Time Zone", then press the ENTER
button.
5. Press the A or T button to highlight the time zone for your local area,
then press the ENTER button.
6. Press the A or _' button to select "DST" (Daylight Saving Time), then press
the ENTER button.
Press the A or _' button to select "On" or 'Off', then press the ENTER button.
Press the EXIT button to exit.
> Depending on the broadcast station and signal, the auto time may not be
set correctly. If this occurs, set the time manually.
:_ The Antenna or cable must be connected in order to set the time automatically.