There are now well over a hundred pages of comments spread across multiple threads with early TiVo HD adopters having problems getting their boxes to function correctly. Many of us have spent a dozen or more hours dealing with cable installers, cablecard problems, and TiVo support calls. None of this frustration is worth it. Hold onto your Series 2's and wait out the bugs. TiVo HD is a neat product with a cool, super-clean, much improved interface, and a lot of promise, but the cablecard situation is just a damn mess.