Last year I created my DIY wooden wall TV-setup. It's created with recycled (scaffolding) wood.
Between the wooden plates and the wall there is some space. Which I used to install some led strips on the left, right and top (129 WS2812B leds). I put them on an aluminum upside down U-shaped frame. Btw; in the back of the picture you can spot my black RF-link antenna which controls the 433 Mhz communications within Domoticz.
The rest of all the space behind the panel is filled up with Arduino's, Raspberry PI, Philips Hue Bridge, TV-receiver and a lot of cables.
I run a RPi 2 with latest Raspbian release. Hyperion is installed and is connected via an Arduino to the ledstrip with WS2812B leds. Furthermore I use Kodi as my mediacenter (data supplied by local installed HD and wireless connected network storage). Domoticz is used for all kind of home automation.
All the low voltage stuff (RPi, Arduino, Ledstrip) is powered by a dedicated 5V 10A powersupply. Behind the power supply you can see my modem/router.
The Raspberry Pi and Arduino (and some other stuff. like a small HD) are all screwed on a left-over piece of laminate flooring plate to keep it all together and easily accessible.
To give you an idea of the total setup; let's see some lasers!
I still need to do some power optimisations (it is powered from one side which I can clearly see in white color output along the strip) and color calibrations.
At the moment I use Domoticz to control Hyperion. When I use Kodi to watch something on TV, it (always) automatically switches to Ambilight-mode. For the rest of the time it checks the status of my Philips Hue lighting. When lights in the living room are activated; it will turn on the led strip with just one single color.