I've owned a Philips TV (65PUS8204/12) running AndroidTV for ~9 weeks. In the last couple of weeks, I noticed the picture was regularly freezing when watching the Netflix app. Sound was not disrupted, but the picture would freeze for about 1 second. Sometimes the picture would freeze for longer (~5 seconds) and the lip sync would go out.

I tried closing all other apps, but it didn't seem to make any improvement.

After running through the 'Reinstall TV' process, the problem seems to be gone.