Aquired HR20-100 last summer to join my HR10-250 (Directivo) connected to my main HD TV. Both connected to OTA. 1. HR20-100 worked pretty good. - Had a few lock-ups when messing with Photos and Music but otherwise good until its final week. - A few weeks ago (Late Sept) while watching TV screen would go black and sound would go quiet. The GUI worked. Changing channels/ using trick play / fast forward worked for the first couple of days this happened. Happened again about three days later on a Sunday while trying to watch football. Gui worked but no picture / no sound. Nothing again worked. Did all the troubleshooting (reset via gui, red button reboot, unplug). Was occurring more and more. Started getting access card error messages. Eventually no less than a week after the initial symptoms the system no longer read any access card. Called Directv. 2. HR20-700 (refurb) is sent to replace broken HR20-100. Arrives on a Friday. -Join the Cutters Edge and download latest firmware. VOD (DOD) included!. All seems to be just fine throughout weekend. Play around with VOD and Streaming pictures and music. Watch a few shows and use heavily on Sunday while watching football. Things looking good! - Monday (Oct 8) come home and turn TV on. HR20-100 stuck on picture with sound. Gui not responsive via remote or front panel. Have to RBR. Works fine through remainder of the day - Tuesday (Oct 9) come home and turn tv on. Image stuck again. No sound. GUI works fine. Choosing shows from My Play List it just asks me if I want to delete. When attempting to go to any channel I just get Black. Nothing appears to work. Reboot via Gui. The last couple of weeks seem to be causing me concern HR20. The HR10 has no problems to report. Still working fine. Hopefully things get better soon.