Samsung PN51F4500AFXZA E-Manual page 75

Time: Set the hour, minute, am/pm. Use the number buttons or the A/T
buttons to enter numbers. Use the 4/1_ buttons to change entry fields.
Volume: Set the desired volume level. Use the 4/1_ buttons to change the
volume level.
Source: To select the source of the content that will play when the TV turns
on. You can:
® Select TV and have the TV display a specific air or cable channel.
® Select USIIBand have the TV play back photo or audio flies from a USB
device.
®
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Select a source on your TV to which you have connected a set-top box,
and have the TV display a channel from the set-top box.
The USB device must be connected to your TV before you can select
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