I was told today by a CSR that the 622 will not record 2 HDTV programs at the same time as is true with my 921. I was also told if i upgrade to a 622 my second 921 will no longer receive any HD programs. I said I believe she was wrong, but she argued I would only receive mpeg4 hd streams therefore the 921 will not receive any HD. Can somebody who has a 622 and 921 or 924 installed tell me the truth.