watching Tv on the Nav screen is a bit of a joke really, unless you are up front. rear passangers cannot see much in daylight.

I would suggest buying yourself an 8"-10" portable dvd player with Avi/divx/usb & TV tuner features off ebay
much better than buying TV-on modules ... imho
I am still waiting for price of 12" versions to come down on Ebay
cooa99