I have an extra Samsung LCD monitor with built-in speakers and VGA and DVI port. I'm wondering if I can use a DTV converter box to watch TV on this monitor. Basically, I'm looking for a VGA to RCA (yellow and/or red, white) adatper. There are many on sale online but they're designed for outputing signal from PC's to TV, the other way around. Have anyone tried this out and got it working? And do I need just the one with video (yellow) connector or also the audio (white/red)?