Samsung 4 Serie Manual Del Usuario página 45

Labeling Channels
Channels can be labeled so that their call letters appear whenever the channel is selected.
1, Press the MENU button to display the menu.
Press the A or _' button to select "Channel", then press the ENTER _ button.
Press the A or T button to select "Name", then press the ENTER C ",_ button.
1
Press the A or T button to select the channel to be assigned a new name,
then press the ENTER I:_ button.
Press the A or T button to select a letter, a number or a blank (Results in this
sequence: A...Z, 0...9, +, -, *,/, blank).
Press the _ button to switch to the next field, which will be selected.
Select a second letter or digit by pressing the A or T button, as above.
Repeat the process to select the last three digits. When you have finished,
press the ENTER _ button to assign the new name.
To erase the assigned new name, select "Clear" by pressing the 4 or _ button,
then press the ENTER ES_button.
Press the EXiT button to exit.
:_ The names of digital broadcasting channels are automatically assigned and
cannot be labelled.