This was a big one, but it all paid off in the end! We mounted 4 speakers off the ceiling, running all cabling through the roof for a nice, clean finish. Power, Foxtel, antenna and phone line points were all on another wall, so we relocated it all within ducting to get it all underneath the TV (this cannot be done internally without cutting, patching and repainting several sections of the wall). Wiring from the TV to the equipment was all concealed within the wall. The result? A discrete home theatre setup that sounds phenomenal, yet not visually dominating.