Is there a particular reason the TV Tuner capability has to be built in? If not, I'd recommend going with a low-end card with dual DVI-Out (like an 8400GS), a couple of DVI-->VGA adapters and a separate TV Tuner card.
It the TV Tuner capability must be built in, I don't know. My old ATI X1800XL All-In-Wonder could do it (VGA/S-Video dongle went bad on it though). The newer HD All-In-Wonder's have 1 DVI and one HDMI. You'd need converters for both to VGA