If your graphics card is something like an ATI "All in Wonder" then yes, it's most relevant. All you'd need to do is plug an aerial into it, then install the relevant software/drivers which if you haven't got you will most likely be able to download from the website of your card manufacturer. I used to have a Hauppauge Win TV Theatre card, but the software was so unstable under Windows ME (which i was daft enough to be using as my OS at the time) that i gave it away to a friend.