Samsung UA40J5100 User Manual page 57

Source: To select the source of the content that will play when the TV turns
on. You can:
–
–
–
N The USB device must be connected to your TV before you can select
◀
USB.
Select TV and have the TV display a specific air or cable channel.
Select USB and have the TV play back photo or audio files from a
USB device.
Select a source on your TV (HDMI1, HDMI2/DVI, AV, Component,
etc.) that you have connected a set-top box to, and have the TV
display a channel from the set-top box.
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