I am far from a computer expert, so I don't understand DVi
And while I suspect that you're not asking the right question, I think I understand what you require. so I'll take a whack at it.
I believe you are looking for a VGA/PC to TV converter. They can be purchased (plus any shipping charges) for anywhere from $40 -100.
see the following
http://sewelldirect.com/pc-to-tv.asp
see also the following regarding multiple display outputs
http://www.tomshardware.com/forum/24636 ... l-monitors