The HR22 may very well be the worst of the HD/DVR's
However, it is the best Standard DVR (R22).
If I was going to add a SD/DVR to my bill, it would be an R22 hands down.
That being said, it really does not matter what you get as they really all deliver advantages and disadvantages.
Sure the HR20 is ugly and has a small hard drive but people seem to like it better and although I could care less about an OTA, some like it a lot.
Other DVR's look better (who cares though right?) and have larger hard drives. However, some find them to be slow.
Now when it comes to the one that has it all, the HR24 is it.
Looks fantastic, faster then them all and 500gb hard drive.
Ok, so it doesn't have an OTA but if that is a huge deal then get an AM21.
I highly doubt you will see the HR24 though unless you pray really hard to the receiver gods.
But you never know.