In retail stores, you might also find an R22, which is the same as an HR21 if you currently have HD service enabled (with the most recent national release software). The main difference between the HR21 and HR22/23 is that the latter have 500GB harddrives, while the HR21/R22 has a 320GB harddrive.
The biggest benefit of the R22 is that the retail upfront lease cost is almost half that of the HR2x series receivers.
- Merg