So I recently switched to the Genie system. The installer was great and installed a HR54R1/700 receiver and a mini. While things are working fine for HD channels (receiver is much more responsive to remote commands than the HR24 I had) I do have one issue I can't figure out. I know you can no longer set the receiver to display native resolutions (bummer) but this receiver will not allow me to check 480I resolution. It reports tv does not support this resolution. Well, I know that's not true. I've used native 480I resolutions on this set many times before. The set is an LG 55" UH8500 series. The old receiver (HR24) displayed 480I resolutions just fine and the set displays 480I OTA broadcasts just fine. Can anyone tell me why the HR54 won't allow me to select 480I resolutions on the resolution screen? All other resolutions 480P, 720P, 1080I and 1080P are allowed to be checked. Also the mini in the bedroom does allow 480I to be checked on a Sony tv. While this is in no way a deal breaker for me, it just has me puzzled and I would like to find out why this is happening. Thanks in advance for any solutions.