I recently switched from cable to DirecTV (satellite). I went through the "Set up TV signal" in Media Center, and I went through the manual setup of the remote as it didn't recognize the DirecTV remote. All seemed okay, except sometimes (often - about 1/2 the time) when I select a channel in Media Center's guide it sends 5527 instead of 527 or 5446 instead of 546 - so it doesn't change the channel correctly. (I see the numbers show up on the TV screen before the channel changes.) I tried re-learning the remote, but the problem is still there. (Media Center is changing channels through the IR Blaster attached to the front of the DirecTV box.)