I have a New Roamio OTA VOX. After recording a show (which was setup from the Guide), AND RECORDED WHILE IT'S IN STANDBY (aka Power Saving Mode - this seems to be related to the problem), I press TiVo button to wake it up. Intermittently the video is then there but no audio (sometimes audio is there, sometimes not). I then have to do a Restart to bring the audio back on the recorded shows. Any ideas?