This is a concept for an entertainment cabinet that I have been exploring. These pictures show my first prototype for the cabinet. The cabinet mounts on the wall using a french cleat which is hidden from view behind the cabinet. All of the wiring, including HDMI cables, power cords, power bars, etc., is hidden inside the lower compartment in the cabinet behind a removable panel. In the prototype shown in these pictures, even the power outlet on the wall is hidden behind/inside the cabinet, so the power cord running from the power bar to the AC outlet on the wall is hidden.
Ideally, the HDMI cables running from the cabinet to the TV would be run inside a conduit hidden in the wall. In the location where this cabinet is mounted now, that was not an option, so there are three HDMI cables and a power cord running from a slot in the top of the cabinet up to the flat-screen TV mounted on the wall above. Even with these cables being visible, the whole setup has a very neat and clean appearance.