CO-LOCATION: USING GEMINI WITH AN HR54 If you have an HR54, you can connect the Gemini to the Ethernet port. DIRECTV calls this “co-location.” You then connect the HDMI cable to the Gemini, not to the HR54. The HR54 essentially acts as a server for the Gemini, and you get all the benefits of the Gemini experience wherever your HR54 is ... More @Wikipedia
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