Juha Kuusama writes to inform us of LiveLight, a cool DIY ambilight project. This is a homebrew ambilight system by SunWind that has 9 PWM controlled RGB channels which drive RGB LED strips that are mounted in the back of a 40″ Sony Bravia. All the parameters can be reprogrammed to match your taste.
The open source design is freely available from the LiveLight project page.
Via the contact form.