Control4 Alternative?

Hi, dont know if this topic has been addressed or not but I am looking for a device that outputs hdmi with an overlay of some sort to control numerous z wave devices. I saw a youtube clip that had a set-top box doing it at one point that did exactly what I wanted but was unable to find it again. I think the company was called Sigma designs, I did some research on them but could not find what I was looking for. I am just trying to figure out the best combination of equipment to buy (which receiver, brain, blaster) to do onscreen device control/netflix/etc. If veralite had an hdmi out with a passthrough it would be what i was looking for…well at any rate, any input would be appreciated.

Vera has nothing to do with inline video processing or manipulation. No video connectors whatsoever on the units.