How to Hook Up to the Video Inputs on a DirecTV Box
- 1). Turn off the DirecTV set-top box and your TV.
- 2). Insert one end of the HDMI cable into the "HDMI" port on the input panel of the set-top box.
- 3). Plug the other end of the HDMI cable into the "HDMI In" port on the rear panel of your TV.
- 4). Turn on your TV and the set-top box. Press "Input" or "Source" on the TV's control panel until the picture from the set-top box appears on the screen.
Source...