Correct. I'm getting 2 of the HR24 HD DVRs. I opted not to get the AM21 add-on for OTA since... well if I can't get an extra tuner by using it, I may as well just go OTA to my TV and use it as a backup. The channel guide is still going to be on the satellite guide since I'll have locals on satellite as well.
You *could* get the AM21 just as a convenience so you have OTA and satellite in one guide. Maybe I'll add them later. Just didn't see a need right now.
thanks again - so if i get the AM21 - could i record two shows via the HR24 and watch one off the ota?