I purchased a DVI video adapter that you plug an HDMI cable into and then plug the other end of the HDMI cable into the digital cable box. I believe the TV recognizes there is a connection as the light in the front of the TV stays green. I don't get any sound or picture using this cable. My manual does not give any specific details on how to make it work...any suggestions before I return the cable and adapter back to the store? By the way, my TV model is DGL3704, but I could not find a listing for my 37" TV on your site. Thanks, Mike
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