Samsung SyncMaster 400DXn Owner's Manual page 88

Area
Name: Changes the area name.
You cannot use a name already used for another area name.
Lock Position: Locks the position of the area.
Left, Top, Width, Height: Changes the position and size of the area.
The area positions must be within the background and the area size cannot be larger than
the background size.
Start Time, Stop Time, Duration: Sets the playing time in seconds.
It cannot be longer than the background playing time.
Screen
Source List: Selects the source to be played in the Source area.
Sound: Turns the sound for the source you want to play in the Source area on or off.
TV/DTV : When selecting TV from the TV/External Input list, you can select either Analog TV or
Digital TV. When selecting Digital TV, you can enter both the main and sub channels using the
channel option. (460TXn Only)
General Broadcasting/Cable Broadcasting: You can select general or cable broadcasting.
(460TXn Only)
Channel: You can select the channel for the selected TV (460TXn Only)