You've got several options for doing this. If you don't want to bother with "TV" out on your video card (and frankly most of them are not great), the gadget you are looking for is called a scan converter. They run from a few hundred US dollars to well over $10K for commercial quality ones.
We (
http://www.farhorizonstudio.com ) do a number of computer educational videos and use a mid-grade commercial scan converter to DV tape and then a Firewire link to a digital edit suite. Let me warn you, however, that you won't be very impressed with the results. That "haze of vaseline" look is pretty common. The problem is a simple one of available resolution. By the time you get down to a VHS quality image (and most streaming web distributed things aren't any better), you're down to such a poor resolution that things like text are essentially unreadable. We have to use a zoom feature of the scan converter to be able to read the text on buttons and the like.
Having spread all this gloom, however, there's been some interesting stuff done. My favorite is probably
Brendo's Movie Page. His source material comes from Warbirds, but the principles are the same. His site is downloadable QuickTime files, and some of them are
really big.
Hope this helps
[This message has been edited by Lepton (edited 09-29-2000).]
[This message has been edited by Lepton (edited 09-29-2000).]