According to Samsung, its Smart TVs only listen to you under very specific circumstances, the devices are programmed to recognize certain key phrases and commands. In this instance, a customer's voice data is not stored nor transmitted anywhere.
The other instance in which a TV may be listening to you is while using Samsung's search function, where a user can talk to their TV remote to look up a specific TV series or a movie. The TV is only listening when the feature is manually initiated, so it won't be listening to you without your knowledge.
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