Thanks for the reply, but this isn’t about the apps (which already have notifications turned off. And the “TV” notifications are off, too.). More info for context;  What’s happening is that intermittently (sometimes every few seconds for a while, sometimes randomly one or two) a notification pops up in the upper right corner that the internet connection has been lost. But it’s not; the content continues to stream merrily along without a hiccup. It’s almost as if the ATV is overly sensitive to very minor variations in the incoming signal, and is a bit trigger-happy about notifying us. It’s distracting and irritating, since it doesn’t seem to signify anything “real”.  I tried Do Not Disturb this evening, and over several hours didn’t see this notification at all, which was great. If this continues to “work” over the next few days then I’d like to have DND enabled permanently and be done with it.But the system doesn’t appear to offer that ability.  I’m running the latest TV OS 26, and have run through every one of the usual troubleshooting steps (factory resets, change cables, reboot router, the works) to no avail.