I have had a Playbase connected to a Sony Bravia OLED. My TV source was an Nvidia Shield. I rarely had audio sync issues until I replaced the Nvidia Shield with an Onn Google TV 4K Pro streamer. If we’re watching YouTube TV, for example, and turn the TV off, the next time we turn it on the audio is out of sync. It seems to happen less if we stop the audio before we turn the TV off. When the problem is noticed, turning the TV off and on again fixes the issue every time. I just replaced the Onn box with the new Google TV Streamer and it has the same issue. I haven’t tried putting the Nvidia Shield back to see if that fixes it but I have tried different audio setting on the TV without success.

Looking for ideas, please!