I recently purchased a WinTV-PVR 150 TV tuner card. It allows me to watch or record live TV straight to my hard drive. Because the encoder is built into the card, my PC isn’t slowed down any while it’s recording. I purchased the card because it’s one of the cards supported by Linux and MythTV. When I build my next PC, my current PC will be turned into a MythTV server so I don’t have to buy a TiVO and pay their subscription fee.