I was hoping to leave a computer out of the equation so hopefully I can get something working with just the arduino.
Oke, for me using my existing HTPC for films etc it is merely using existing hardware.
And for the news there is no real need for ambient colors.
I am not entirely sure, but you may be able, if you have an LED backlit TV, take some voltage/current readings off the backlight circuits and use them to help with making the outputs match the intensity of the screen.
Yes but I would like my TV closed, besides it's a plasma