You'll be able to use the S-Video port on your graphics card to connect to the television. Get an S-Video cable, plug one end into your computer, and the other into the TV. Goto to Display in the Control Panel, click the Settings tab, and choose your Display. Click apply, and exit. Should be that simple, I've never done it before, so I'm not entirely sure.
Fair warning, though, unless you've got an HDTV, the resolution will be horrible. I believe NTSC is 640x480, maybe 600x800, and that's on every TV that's not a HDTV.