[-Ramirez-]

Chrisz, an onboard video card is just that, a video card. Whether or not it's detachable from the motherboard makes no difference. There are newer motherboards that have video cards with much higher resolutions and color depths than what you're thinking of as well.

and...

marcoR, a TV out wouldn't allow you to view what's on your PC screen on another display device. It would allow you to view the current TV channel, as you would imagine.
DVI is used for LCD monitors, assuming that's what you're referring to. That is located on the video card.