*Which* Naxa & which Emerson do you have?

All model numbers please so can be 110% certain which ports/connections you have available to you on your system. Otherwise, what I recommend might only apply to different TVs/HT systems, etc. Thanks.

Is it by chance one of the old Comcast Pace SD DVR boxes? If so, I am familiar with it. We still have one in a guest room at home.