It's Not Just LG: All Smart TVs Are Watching You

A two-hour-and-fifteen-minute video published by tech media outlet Gamers Nexus has thrust the smart TV industry into the spotlight. The video accuses LG televisions of harvesting vast amounts of user data without their knowledge — recording and storing audio while appearing to be off, tracking everything you watch, and potentially being compromised remotely to function as a covert surveillance device.

These allegations sound like something out of a sci-fi thriller, but they actually point to a business model that has long been standard across the entire smart TV industry. The key issue is this: it's not just LG. It's an industry-wide practice shared by nearly every TV manufacturer.

The Smart TV Data Business

Modern smart TVs are far more than a display panel. They come with built-in operating systems, internet connectivity, and an extensive suite of software services — essentially functioning as data-collection terminals disguised as televisions. The reason manufacturers can keep selling TVs at lower and lower prices is largely because data monetization beyond the hardware subsidizes those price points.

The core technology behind this model is called ACR — Automatic Content Recognition. The TV samples and identifies whatever is playing on screen, regardless of whether the content comes from cable, a streaming app, or an external device. Through ACR, manufacturers can pinpoint exactly what users are watching, for how long, and at what times of day, building detailed user profiles in the process.

This data ultimately flows toward targeted advertising. Manufacturers package viewing behavior data and sell it to advertisers and data brokers, or use it to serve highly targeted ads within the TV's interface. For manufacturers, a sold TV isn't a one-time transaction — it's a data pipeline that generates ongoing revenue.

It's worth understanding how ACR actually works. Every few seconds, the TV captures a frame of whatever is currently on screen, converts it into a "fingerprint" — a compressed set of identifying characteristics — and compares it against a massive cloud-based content database. This allows it to identify which movie or TV show is playing, right down to the specific episode and timestamp. The process is entirely transparent to the user, requires no active input, and isn't limited by content source — whether it's a streaming service, a cable signal, or a game console connected via HDMI, if it appears on screen, it's within range of identification. ACR was originally developed by companies like Gracenote before being built directly into TV operating systems by major manufacturers as a standard feature. Since recognition happens on-device and data uploads occur silently in the background, most users remain completely unaware of it throughout their entire ownership experience.

Beyond LG, Everyone Does It

While Gamers Nexus's video focuses on LG, the problems it reveals are universal. Samsung, Vizio, TCL, Sony, and other mainstream brands all operate in similar ways. Vizio was previously penalized by the Federal Trade Commission (FTC) for collecting viewing data without user consent — one of the most direct pieces of evidence that this is an industry-wide issue.

The allegations around "off-state surveillance" and "audio recording" are particularly troubling. If a TV can capture ambient audio while in standby mode and upload that data, its privacy implications go far beyond ordinary viewing tracking. The risk of being "remotely compromised into a surveillance device" exposes the weak security design inherent in these connected devices — any vulnerability in a manufacturer's cloud services or device firmware could turn a TV into an entry point for attackers.

It's worth noting that the technical details behind some of the more extreme allegations still await broader independent verification. But even setting aside the most alarming claims, the fact that smart TVs routinely collect viewing data with these features enabled by default is itself sufficient cause for privacy concern.

The FTC's action against Vizio is an important reference point for understanding the current state of the industry. In 2017, Vizio settled with the FTC for $2.2 million after its ACR system collected detailed viewing records from 11 million televisions and sold that data to third-party advertising companies — all without obtaining explicit user consent. The case established a foundational principle: collecting this kind of data requires informed user consent, and cannot rely on default authorization buried in lengthy terms of service. Yet the settlement didn't produce fundamental change across the industry. Manufacturers adjusted the wording of their privacy policies and configured data collection as "on by default but opt-out," achieving technical compliance while substantively continuing the same data collection logic. This approach of being "compliant but opaque" is precisely why critics argue that regulatory enforcement has been insufficient.

What Users Can Do

Faced with this situation, ordinary users aren't entirely powerless. Most smart TVs offer options to disable ACR and data collection somewhere in the settings menu — but these options are typically buried deep, with deliberately vague labels like "Viewing Information Services," "Personalized Recommendations," or "Interactive Features" that make it difficult for users to recognize they're authorizing data collection.

A more thorough approach is to avoid connecting the TV to the internet at all, instead using a standalone streaming device — such as certain privacy-focused set-top boxes — to play content. A smart TV without internet access loses most of its ability to transmit data, effectively reverting to a pure display. For technically inclined users, blocking known data-collection domains at the router level is another option.

However, all of these protective measures require users to take proactive steps, and the bar is not low. The industry default remains "surveillance out of the box," placing the burden of privacy protection squarely on the consumer.

Blocking data-collection domains at the router level is a systematic protection strategy commonly used by technical users. The approach involves setting up blocking rules on a home router or local DNS server — such as Pi-hole — to intercept known telemetry and ad-tracking domains, preventing the TV from transmitting data back to manufacturer servers even while connected to the internet. Pi-hole is an open-source DNS filtering tool that runs on low-power devices like Raspberry Pis, enabling centralized control over an entire home network without modifying the settings of each individual device. The advantage of this method is broad coverage and a set-it-and-forget-it nature, but it has drawbacks: it requires some network configuration knowledge, and some TV firmware hardcodes telemetry requests to specific IP addresses, bypassing DNS-level filtering entirely.

The True Cost of Cheap

The smart TV episode reflects a broader trend: when hardware becomes cheap, users themselves become the product. That 4K TV you bought at a bargain price is truly "paid for" through the ongoing contribution of your viewing behavior and ambient data.

This logic plays out again and again across smartphones, smart speakers, connected cars, and all manner of devices. Televisions stand out simply because they occupy a central place in the living room over long periods of use, and because users tend to be far less alert to their "smart" capabilities.

The reason Gamers Nexus's investigation generated such widespread attention is precisely because it brought a long-ignored industry norm into public view. It reminds us that as we enjoy the convenience of connected devices, we would do well to take a closer look at what those devices are actually doing in the background — and whether we ever truly agreed to any of it.