Does your TV have S-Video input or just RCA (yellow cable)? You also need an RCA audio cable (red+white).
The audio cable is like 3$, and if I remember correctly, I paid 6$ for a 6-foot S-video cable. (RCA video is even cheaper)
Go to radio shack and get the cheapest you can find.
edit--if you only have RCA input on your TV, you need an S-Video to RCA adapter, but it's supposed to come with the card.