okay...all this jibber on elgato's website is confusing. Will someone who knows what they are doing help me find the right one? What I want to do: Plug in my comcast digital cable box into this device and recieve every channel I would be able to if I had just plugged it into a TV...even better if I dont need the digital box. I also dont understand this whole encrypted channels thing... So...would that mean I wouldnt be able to watch special channels like HBO and other non-basic channels? I would like to be able to record HD video.