Framing a television is easy to get wrong in one specific way: the frame must not touch the screen.
A television is a sealed unit that expands slightly as it warms and needs air around its edges to shed heat. A frame built tight to the bezel traps that heat and, worse, transfers any knock on the frame directly into the panel.
So this surround is built with a deliberate air gap all round, and the screen is carried on its own bracket behind the frame rather than by the frame itself. The frame hangs on the wall; the television hangs on the wall; neither touches the other. What the eye sees is a picture frame around a picture, and what the frame is actually doing is nothing at all - which is precisely what makes it safe.
The rebate depth is the second decision. Set the frame flush with the screen and the effect is lost; set it too proud and the frame shadows the picture at an angle. Our artisans set it so the frame stands slightly forward, casting a fine shadow line onto the screen edge from the room's own light, without ever appearing in your sightline from the sofa.