So, I am in the DC local market and they started HD locals last month. I called to change over to MPEG4 but luckily I asked a very pertinent question that I did not like the answer to. My situation is this.....I have had the HD Tivo since release date and it is set up in my main watching room. I also have a few other HD TVs around the house but none with HD-DVRs. I am too far away from DC to recieve locals OTA and I qualify for and receive NBC and FOX distant networks in HDTV. I wanted to get the new dish and MPEG4 receivers for all of my non-HDTivo receivers so I could get all of the local networks in HD. However, I was told that if I did this, I would lose my eligibility to receive the distant NBC and FOX HD stations (which I need in my main viewing area). So, it looks like I am going to have to wait until they come out with a mpeg4 compatible HD-DVR before I make the switch. Purpose of this post......if you currently have waivers for distant feeds that you want to keep....don't upgrade to mpeg4 for local HD yet. Peace!!