I just had to do that just yesterday. I signed up for NHL Center Ice and they told me to get it all I needed a new cable box. After some research it seems they were transmitting some of the games in HD but in a new Mpeg 4. It looks the same to me, but the older box couldnt decode the new signal. People that get the NBA or MLB package have to do the same thing. So on one hand more HD is good, but I had to swap boxes and lost my recordings. The good news was the switch is free, I got the boxes mailed to me and it took 15 minutes to set up. The new boxes are 500gb instead of 160gb. While you lose what you have recorded you can import your series to record so you don't have to set them up again. The menu is in HD and has a bit more information. Also it sounds like you can expand the new boxes DVR by hooking up an external eSATA hard drive, but I dont know how that works yet.