Sling Media Slingbox User Manual page 33

SlingPlayer setup steps
Television source
If you connected an external device to the Slingbox, choose the
type on this screen.
It's important that you choose the correct device, so its remote
control code can be used by the Slingbox. Using the IR control
cable, the Slingbox will test the communication with your device.
Also, the SlingPlayer remote control displays the buttons for the
device you connected to your Slingbox. If you connected a DVR,
you can play your recorded programs and control the action. You
can even schedule recordings right from the SlingPlayer.
Tip: If your device fits into more than one category, try the most-likely choice first.
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Slingbox User Guide