"ATI's new TV Wonder Digital Cable Tuner is an OCUR (Open Cable Unidirectional Receiver) tuner, meaning it can accept CableCard signals and send them to your computer. Like the CableCard slots in the TiVo Series3, OCUR devices can accept digital cable signals, but cannot send, meaning you can't get advanced features like video on demand.
But you can record (HDTV) shows in Vista Media Center without a cable box and IR blaster."
