If you are working with Direct TV boxes and a commercial setting such as a bar or resturant, then you should be using DTVGameControl. See their solution here.
We have created a script that will allow the DTVGameControl app communicate directly to a fully deployed Savant system. This will allow you to utilize Savant's advanced Video over IP switching, along with all the Pro8 app TV and music control, and Users scenes.
All while utilizing DTVGameControls built in game guide and 2 way communcation to the Direct TV Satalite boxes.
Please contact DTVGameControl Sales at the bottom of thier page