I own the 811 and i am very happy with it. I do live in a major metropolitan area where OTA (off the air) HD signals are easy to get and, while the can get the OTA signal I am still happier with the Zenith HD receiver that I had before the 811 so I use the 811 for satellite and the Zenith for local broadcasts.
For more info on the 921, 811, etc. go to www.dbstalk.com
(while there, check out the 'laughter is the best medicine forum'......
