Hi, just want to share my simple set up here.
Your comments are highly appreciated specially in cable management, i'm having a hard time on fixing it.

on cables, maybe you can try this idea, use pvc mouldings to form an spider web on the wall, maybe, you can put the center of the web near the upper left corner kung saan nanggagaling yung cables for tv, and make sure that web members ay dadaan sa likod ng bawat gear, wherein, doon lalabas ang mga cables for each gear., tapos on the center of the web, maglagay ka ng toy or pic ni spider-man. tuwa siguro ng mga kids about this idea. Or you could make any design out of the muoldings, horizontals and verticals to form squares, diagonals to form diamonds.etc........