My current setup is an HR34-700, plus an HR24-100, and an HR 24-200. I've been using DTV since '98 when they acquired Primestar. I started DVR with Tivo in '99 and HD in 2001. I morphed into Mem peg 4 in 2004 with HR 21's. I started using AM 21's at that time. We were located between Austin and San Antonio and were getting over 30 channels OTA. About two months ago we started getting 771 messages, along with 721. Plus we have freezes, pixel issues, skips, wrong channels, and slow loading. Our local DTV service tech spent over 4.5 hours at our place yesterday, but was unable to fix the problem. He replaced every component in the system except the receivers. When I called him today he checked with his supervisor, and the DTV "supertechs". The verdict was the DTV software does not support the AM 21 anymore, and that means I have to disconnect the AM21 and no more OTA. In reality none of the local DTV tech know anything about the AM 21 nor OTA! I know that April 1 is a month away, but please somebody at DBS has got to have seen this fixed before. Help would be appreciated.