Comcast here in Elgin told me today that my current Digital Preferred service will NOT work with TivoHD and two CableCards, and that I'd need the basic service (Starter?) instead. Uh... What? There seems to be a lot of confusing posts on exactly which service you get/need and exactly what channels you can get/receive/etc... Anyone want to clarify here? There's also an issue of the HD service fee - which I currently use as well. Do you have to pay for it with a TivoHD?