Once in a while we come across cool stuff like this! Have fun!
Check them out: Zero Characters Left: DIY FPGA-based HDMI ambient lighting
"Ambient lighting is a technique that creates light effects around the television that correspond to the video content. It has been pioneered by Philips under the brand Ambilight. In this project we will create a basic FPGA-based ambient lighting system that reads the video signal over HDMI. This means we are not limited to computer output. We can use it together with DVD players, video game consoles, etc."