he's talking about video in on a video card, usually these are s-video in at best, or just plain old rca video in. the best card for anything of that sort would be an All in wonder ATI card, they are basically made for outputing video to diffrent devices (s-video, rca, or component) or taking video in (s-video or rca only) the video in was made in mind for things like cameras, or hooking a vcr up to your computer.
For these it gives a great image (better then you will get on your TV) but for things like xbox etc, its not very well done (it does the job but its all washed out looking) \
what you want is a vga box, just look around in the topic lists here, there are already quite a few of them.
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http://forums.xbox-s...howtopic=150559