Samsung wants you to know its televisions aren't eavesdropping on your conversations.
It also explained that Smart TVs have one microphone inside the TV set and one inside the remote. The TV mic responds to predetermined voice commands, while the remote mic "works like most any other voice recognition service available on other products including smartphones and tablets." In other words...it's just like Siri, Google Now, or Cortana.
It's therefore a little unclear if Samsung's microphones can capture and transmit living-room conversations, but the company is promising that it doesn't monitor them and that it takes consumer privacy "very seriously".