Following recent accusations that LG Electronics was monitoring customers through its televisions, a major investigation has sought to clarify how major manufacturers handle user data. The inquiry posed seventeen specific yes-or-no questions to eleven companies, including Amazon, Apple, Google, Hisense, LG, Panasonic, Roku, Samsung, Sony, TCL, and Vizio. The goal was to move beyond complex privacy policies and obtain direct answers regarding audio collection, screen recording, and data transmission. Responses were provided by corporate communications representatives from the top three TV manufacturers and all major streaming device companies, while several others declined or ignored the inquiries.
A primary concern for consumers is whether televisions listen to conversations in the home. Amazon stated that its Fire TV microphones only activate when a button is pressed or a wake word is detected. Apple confirmed that its Apple TV 4K uses far-field microphones strictly to listen for the Siri wake word, with no other sounds processed. Google explained that its microphones remain in passive standby until triggered by a hotword or remote button. LG noted that voice recognition is off by default and requires user opt-in, with wake-word detection performed locally on the device before any audio is transmitted.
Samsung clarified that its TVs do not listen for private monitoring, with embedded microphones listening only for specific wake-up words locally. TCL indicated that some of its devices have microphones, but the voice features are often controlled by third-party operating systems under their own privacy terms. In contrast, Hisense did not respond to contact attempts, while Panasonic, Sony, and Vizio did not provide answers to the initial questions about microphone usage. Roku stated that while its TVs lack built-in microphones, some remotes include them that can be switched off.
Regarding the storage of audio data, Amazon and Samsung both answered that they do not store voice recordings or transcripts on the device. Google specified that audio is stored only if the user explicitly enables Voice and Audio Activity, a setting that is off by default. LG explained that if voice recognition is enabled, certain speech-to-text results may be stored locally to support features, while audio used for wake-word detection is deleted if no wake word is found. Roku said it may retain voice commands to improve features, though users can opt out via account settings. TCL stated it does not collect audio data from its hardware microphones.
The investigation also examined whether TVs transmit audio to the cloud. Amazon confirmed that recordings are sent to its cloud to create text transcripts when a user invokes Alexa. Apple described its Private Cloud Compute infrastructure, which processes requests in the cloud without storing personal data, using random identifiers instead of account details. Google noted that if Voice and Audio Activity is on, captured audio is transmitted for processing, but deleted if the feature is off. LG confirmed that voice commands are transmitted to servers for conversion into text, provided the user has opted in and activated the feature.
On the topic of visual data, several companies denied capturing screenshots or video recordings of viewer activity. Amazon, Roku, and Samsung all responded with a simple no. Apple stated that its devices do not use Automatic Content Recognition or collect screen recordings unless a user directly asks Siri about what is on the screen. Google noted that its TV platform software does not utilize ACR, though third-party hardware manufacturers might install separate software. LG explained that its ACR uses audio fingerprints generated from the internal soundboard rather than capturing visual images.
Finally, the companies were asked about the collection of viewing history. Amazon said it collects viewing information to personalize experiences, such as creating a Continue Watching row, which users can manage in privacy settings. Google stated it stores viewing history and app interactions for its own services but does not track history in third-party apps. LG indicated that viewing information may be collected if the user agrees to its Viewing Information Agreement, utilizing ACR to identify content through audio fingerprints. The varying responses highlight the different approaches manufacturers take to balancing functionality with user privacy.
While many companies emphasized that data collection is often opt-in and that users can opt out, the effectiveness of these opt-outs has been questioned. A recent study by Northeastern University found that Vizio continued sending routine operational data even after users opted out. Similar limited traffic was observed with Samsung and Roku devices. These findings suggest that while transparency is improving, the complete cessation of data flow upon opt-out remains a complex technical challenge for manufacturers.
