I want to record Tv shows on my computer with windows media center?

I want to record Tv shows on my computer with windows media center, but it says I need a tv tuner card. How do I find out what kind I need?


My computer is an hp with Windows Vista home premium if it matters.I want to record Tv shows on my computer with windows media center?
You can use a PCI slot or PCI Express x1 slot. Vista Home Premium has Media Center Software Interface.





DIAMOND ATI TV Wonder HD 650 Combo TVW650PCIEWB PCI-Express x1 Interface


http://www.newegg.com/Product/Product.as鈥?/a>





DIAMOND ATI TV Wonder HD 600 TVW600PCI PCI Interface - Retail


http://www.newegg.com/Product/Product.as鈥?/a>