Advertisements I have the same problem with the audio but it occurs when switching between any HD broadcast from DTV or any digital OTA station. Switching between normal DTV channels doesn't seem to be a problem. I've found that disconnecting the Toslink input and then reconnecting it will usually restore the audio. I've also tried using an optical to coax converter to see if it made any difference but the problem still persists. Switching inputs on my preamp/processor and back doesn't restore the audio either.