Here's the whole media wall I finished the other day for the Dosters. The sliding door media console I built for her was the perfect solution for her massive tv wall. And the brackets I found from @homedepot for the scaffolding plank shelves work so well with the door track.
TV Shelf // Media Shelf // Display your TV at any height in your modern living area using this Wall Mounted White TV Console. Designed using a patented hanging rail system, this wall-mount console is easy to hang at any height using the included hardware. A generous 165-pound weight capacity means you can easily display flat screen televisions up to 58 inches.