We actually just figured out a work around to control the 75uh6550 via Crestron. We used a Lantronix RS-232 over IP adapter, RS-232 to mini cablr and also needed a null modem adapter with it, plug it into the "service" mini port. Make sure you have downloaded the latest and greatest software for the TV and bingo, you now are able to control all functions via Crestron including ON/OFF, msg me if you need any further details.