OK I have held off 921 for while until price dropped. Finally got it and hooked it up, well the HD via DVI is amazing on my Hitachi 57! Now the fun startsm I have seen some references to the 921 being quirky and believe either I have a bad unilt or the 921 must still be in beta ! I have had it installed fro 24 hours and have had to do 2 cold (pull plug) reboots! Seems the problems stem from when one tuner is recording and you do much of anything with the other. Earlier I was recording on one tuner and was flipping channles on the other, once I hit some HD channles the unit came to a crawl and finally pretty much stopped responding to MENU or Guide commands! Once the recording stopped the problem did NOT clear up. Cold reboot fixed it. Then tonight while recording I hit the DVR button then START OVER and unit stopped responding. It woudl power off and back on giving me channle control back, but DVR and MENU buttons woudl not respond. After recording stopped pulled plug again and all is fine. Has anyone else seen this? Is the unit bad? or is this what I should expect for Dish BETA products! Oh VOOM where is your DVR??