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LG smart TVs caught logging audio with screen off and snooping on local devices
(www.notebookcheck.net)
This is a most excellent place for technology news and articles.
The regular beeping speaker/piezo solves the same problem without WiFi or other shenanigans.
My LG fridge also beeps, as any other fridge would. I guess the added benefit is that it can send a notification to your phone, maybe useful in some scenarios, all it costs is your privacy..