I was looking for something similar, and found one made by Ergotron, called the Glide Wall Mount, PART NUMBER: 61-128-085. It mounts flush to the wall and travels vertically around 18 inches.

Consumer Reports takes you through the DIY steps to wall-mount a TV. A wall-mounted TV can look better than one sitting on a stand, and keep your family safe from a TV tip-over.

This Rocketfish TV Mount Is Actually Worth Your Money . First up, the technical stuff you actually need to know: This beast ...

Adjustable Tilting/Swiveling Wall Mount Bracket (32-60-inch) - $60.61; Recessed Pro Power Kit - $48.18; ... An allen bolt is provided to secure the arms to the mount in s away that prevents the TV ...

Wall-Mounted Shelf Prevents Toppling Books With Sliding Lock. Hold on Tight, by the Brooklyn design studio Colleen and Eric, is a wall-mounted bookshelf with a book-locking mechanism built into it.