They have not gotten my Samsung to work either. They say it needs a deca, but those on line say they don't. Their
sending someone next week to look at it.
Yeah, I ran into this same problem with my Sony 70R550A. I spent over an hour on the phone with their "support" people, back in late May. They didn't have any clue about the Sonys having been approved by DirecTV and RVU certified and all. I did ultimately manage to get the "supervisor" of the original support person to look on the DirecTV web site and read me back where it said "Sony".
After that, yeah, she tried to convince me this was going to take a service call and DECA. I tried to be nice and explain that all a DECA does is bridge a standard network (10/100/1000-Base-T) over to DirecTV's Ethernet-over-Coax, and I used (initially) simple words, but she just didn't get it. I continued to explain that my Sony was already hooked up (in this case, through a GigE switch and the Ethernet to Coax bridge built-in to my HR34), but she still didn't even show a glimmer of understanding. I pointed out that, when I replaced one of my C31s on the network with my Sony, the Sony worked just dandy. Already. This very moment. And ALL I FRACKIN" NEEDED WAS ONE MORE RVU SLOT! No dice. Like talking to a plant.
There's absolutely nothing anyone needs to do to your TV to hook it up, as long as that TV's Ethernet is on the same network as your DirecTV. It actually works through routers, too, if you set them up right... but that's another room, and another story.