Samsung is warning customers about discussing personal information in front of their smart television set. The warning applies to TV viewers who control their Samsung Smart TV using its voice activation feature. When the feature is active, such TV sets "listen" to what is said and may share what they hear with Samsung or third parties, it said. Privacy campaigners said the technology smacked of the telescreens, in George Orwell's 1984, which spied on citizens. Samsung has issued a statement that emphasized the voice recognition feature is activated using the TV's remote control.