I've had my 722 two and a half years now, and it seems every 6 months or so it gets a new problem. Currently the EPG is incorrect, but it has been through: recording a show for 40 hours straight, recording for 0 min, not playing back, losing timers, involuntary restarts, disconnecting from connectivity, and forgetting an EHD is connected. I keep moving anything important to the EHD every month, but I just can't seem to get it to give me an actual fatal error so I can replace it.