I just re-signed up with DirecTV after being with Comcast for a little over a year. I got the Home Media Center w/ 3 HD Receivers. The question I had with regards to the HD Receivers is: 1) On the HD Receiver, will I be able to browse, choose/watch any live TV channel as long as a tuner is available on the HMC? 2) Will I be able to pause/rewind, etc on the HD Receivers (I'm guessing it remote buffers similar to my XBOX/Windows Media Center) does? My biggest concern is the above. Will that work?