Note: this is not a request for troubleshooting help.
For the past few years my 10ish year old “smart” TV will maybe once a week or so completely lose the ability to play sound in the Youtube app, and only in the Youtube app. Sound works just fine everywhere else. Bizarrely this is always triggered by an ad and never a video. Restarting the app doesn’t fix it, and neither does clearing the cache. Fortunately doing a full restart of the TV fixes it, it’s just irritating to have to restart because an ad somehow broke the sound.
What technological gremlins haunt you?
I bought a brand new Lenovo Yoga laptop, and when connecting to my TV via HDMI, the TV occasionally goes black for a second or 2 then comes back. It doesn’t happen at all when streaming video full screen, only when doing something simple like browsing the Internet. Happens with Windows and Linux, although it’s more frequent on Linux.