Not sure I care enough to change the audio sync setting. Not even sure my NVIDIA SHIELD has the latest firmware, don’t think it has the latest Kodi, might of updated itself by now though. Apparently some NVIDIA SHIELD update added MPEG-2 hardware decoding support. I assume Kodi live TV uses MPEG-2, but I could be wrong. Looks like it was version 1.2. To lazy to turn TV on and see what firmware I have.