Count me in on both 722 and 722K for this really annoying and too frequent problem. No, it is not a heat issue. Both temps are fine and have proper space for ventilation. After a reboot, all is fine. The problem is, this stupid bug can occur several times a week, and if I have something recording, I am NOT gonna reboot, but I can't get the picture to stop "stuttering" like low sample frame rate. So, I can't really watch TV. This really has become a real problem that Dish must address ASAP!