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The SJ4R has two HDMI Ports on it. One of the HDMI ports is an input and the other is an output but it also supports HDMI ARC functionality. HDMI ARC functionality offers a two-way communication between devices over a single HDMI connection so you can use it as both an input and output. However, that only works if the device that you are connecting it to also has an HDMI port that supports HDMI ARC functionality. If you are in need of any assistance, have additional questions, or would just like to see our helpful tips, check us out on Twitter @LGUSSupport Facebook https://www.facebook.com/LGUSA/ or you can give us a call at 800-243-0000. ^CP
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