The funny (not)S-video on the card will have a custom plug that came with the card. It should have adaptors that convert it to S-video, component and (in my case), composite.
As my TV only has S & composite in, and the tuner/amp only does composite switching, I'm using composite for now.
When I can afford a TV/tuner with HDMI however...

The day will come, the day will come...