No, you are still limited to the same 2 concurrent recordings. The AM21 module just makes the HR21 look like a HR20 with it's internal ATSC tuners, no additional functionality/features are added over what the HR20 can do.
So does that mean it cannot record OTA at all, or can it record any mixture of OTA and SAT as long as there are only 2 concurrent recordings? I considering a switch from DISH but OTA recording is a factor.
Sorry for my stupid question but I'm currently an E* subscriber who is thinking about moving to D*. One of the reasons I've been waiting to move is I was told that the newest D* DVR, the HR21 can record two satellite programs at the same time like VIP622 E* has but currently lacks an OTA tuner which I was also was told was coming soon (don't know what that means, remember I'm currently with E*).
If I' reading this right when the upgrade to the HR21 does become available it will allow me to watch two OTA shows at the same time but I can't record off of either of them? Is this right or can I record 4 shows at the same time (2-sat, 2-OTA)?
The HR21 with AM21 (or the HR20) will allow you to record two shows at a time, any combination of satellite and OTA. You can also watch a recorded show while up to two other shows are being recorded. Unlike some of the E* models, it will not output two different shows simultaneously. The OTA tuners in the AM21 are of a newer generation than those in the HR20 (-700, at least) and will deal better with multipath, etc.
So with the HR21 and attached AR21, I will only be able to recorded two shows at the same time unlike the E* 622/722 which will allow me to record 2 sat shows and one OTA show at the same time which I currently do a couple of time a week.