I have an HR21-700. It seems to be having a problem lately with channels that aren't available all the time. Channel 641 is MASN2. Yesterday, the Orioles were on that channel. However, on that channel was just the Directv logo. 641-1 is the HD for that channel, that channel didn't even show up on my guide. So I went to my other DVR (HR22-100), the game was on both 641 and 641-1. So I restarted the HR21, no help. Then I reset it by pushing the red button. That fixed the problem. Now tonight, the Nationals are on MASN2 and both 641 and 641-1 show the directv logo. The HR22 works fine. Since the MLB package was free this weekend, I checked some of those channels too and some channels worked and others didn't. Any ideas?