Every wondered why you get emails with subjects in that you were just discussing verbally or on the phone?
Perhaps your Samsung Smart TV with voice control is listening in to your conversations.
Samsung UE55HU8500 has both gesture control and voice control, there is also voice control on the remote control.
I had a customer asking why as soon as they had put the phone down after talking with a friend, they received an email with content in about what they were just discussing over the phone.
I would recommend that you switch the voice and gesture control off on these devices and make sure you have the latest software installed on them.