Looking to get a couple of key issues cleared up. First, is the remote infrared (IR) that can be "learned" by another learning remote, specifically the functions that control the satellite receiver? Anyone do that? Second, does this thing have a built-in DTV tuner? Like other brands, can you "scan" or "add" your local HD channels into the unit's program guide? And if so, if/when you select a local HD off-air program from the guide, does it automatically show up on your TV screen or do you still have to change TV channels or hit any other buttons to get the picture? Any other pros and cons would be welcome too. Also, if you wouldn't mind, include an email address in your response. Thanks.