I bought this on eBay from a Malayasian seller a few years ago and the seller sold it as 'working', however, when I got it I couldn't get it to show anything on the screen. The modification seems odd (because the A/V comes out of the CH switch and not the RF) but since it also came with a clunky adaptor that didn't even match the voltage, I don't know if its one of the other or both that causes it not to work. Any ideas?