How is a TiVo HD XL DVR different from Series2?
The TiVo HD XL DVR supports digital and high definition programming from cable and antenna. The TiVo Series2 DVR supports only standard definition from cable, cable with a box, or satellite with a box. Both DVRs can be connected to either a standard TV or an HD TV, but the TiVo HD XL DVR can display in high definition on your HD TV. The TiVo HD XL has much larger recording capacity than the TiVo Series2 DVR.