hello, I'm sad to report I liked everything about the Traxis DVB-3500 but the finding out the unit won't pass AC-3 audio through either the coax or optical digital ports on the rear of the unit.  Why put those connectors on the back if they won't pass the AC-3 audio like one would expect them to do?  What good are the ports on there anyway?  I can't get mine to pass nothing to my Dolby Digital Decoder.  Would've loved to keep this unit, but might have to return it for something that passes AC-3 audio.  Need to get sound from "The Tube"