Last Night I after watching a couple of live TV channels and a recording (without problems) I decided to fire up Spotify on the Tivo, as I have done many times before without incident. I pressed play on a track and it began playing but no sound came from my speakers. I stopped and tried again and then tried another track but what ever I did I got no sound. I exited the app and went back to the TV station i was on before I went to spotify, still no sound, switched channels, still no sound, tried to get my shows menu up to try a recording and tivo froze. I rebooted the machine and once it finished its set up my sound was back on TV and on spotify. It may have just been a one-off glitch but I thought I would put it out there anyway.
I have experienced a sound drop out on Netflix over the last few months, but not the loss of all sound. The Apps are normally well behaved and as I said loss of sound with spotify may have been a one off glich as it hasnt happened since. I will post again if it returns.