New Independent Research Reveals Smart TVs Are Spying Even More Extensively Than Previously Feared

For years, it has been one of the technology industry’s most widely acknowledged realities that smart televisions actively monitor what viewers watch. Countless consumer reports, online videos, and technical guides have detailed methods for mitigating this data collection while attempting to preserve the primary functionality of modern displays. Unfortunately, fresh independent research strongly suggests that the problem is far more invasive than previously understood, and that the conventional techniques relied upon by privacy-conscious consumers may be entirely ineffective.

Your smart TV or streaming stick knows significantly more about your daily media consumption habits than most users realize. While the public has grown increasingly aware that modern connected displays employ various tracking mechanisms, recent investigative work has shed light on the true breadth of this data collection.

At the center of much of this surveillance is a built-in feature known as Automatic Content Recognition, or ACR. This technology samples whatever appears on the screen, whether it is streaming video, broadcast television, or input from an external device, aggregates the resulting metrics, and transmits the compiled information directly back to the manufacturer. What makes ACR particularly intrusive is its ability to operate continuously in the background, harvesting information even when users bypass the TV’s native operating system apps to view content through a connected video game console, desktop computer, or Blu-ray player.

While privacy advocates have raised concerns about ACR for years, a comprehensive investigative deep dive conducted by Gamers Nexus into LG smart televisions has provided a sobering look at the actual scale of these telemetry operations. The investigation details how modern smart displays are capable of capturing audio through microphones embedded directly within the television chassis and its remote control, utilizing ambient sound capture to help categorize and track user habits.

In response to these findings, LG has formally disputed claims regarding ambient audio recording, maintaining that its voice-recognition features process speech only when explicitly activated by the user through a deliberate command. Executives at the company have previously summarized this approach by noting that manufacturers ultimately "own the glass," highlighting the deep level of integration between hardware and software ecosystems.

Beyond content recognition and voice capabilities, the investigation revealed that these devices routinely perform aggressive network scanning. Modern televisions actively catalog surrounding Wi-Fi service set identifiers, monitor signal strengths, record media access control addresses of neighboring hardware, and archive detailed metadata from every device sharing a local home network. Combined, these mechanisms result in the generation and transmission of gigabytes of telemetry data sent directly back to corporate servers.

Although LG served as the primary subject for the Gamers Nexus investigation, industry analysts note that this capability is widespread across major consumer electronics brands. Parallel investigations, such as those conducted by testing organization RTINGS regarding Roku devices, demonstrate that aggressive telemetry collection is an industry-wide standard rather than an isolated practice.

Crucially, while ACR is frequently disabled by default on many hardware platforms, manufacturers often present the feature during initial device setup in a manner that encourages users to accept bundled terms of service with a single click. Consequently, the television continues active data harvesting until the owner manually navigates through complex system menus to locate and disable the feature.

Even when users successfully turn off ACR, the data collection does not necessarily cease. Research indicates that the moment a user opts out of the feature, the television captures a final snapshot of system telemetry and transmits a concluding data package to the manufacturer. Furthermore, even with ACR completely deactivated, connected displays retain alternative methods for dispatching diagnostic data and can derive unique device identifiers directly from network addresses, establishing an endless cycle of background tracking.

For years, tech enthusiasts seeking to secure their home networks have turned to self-hosted domain name system filters, commonly referred to as DNS sinkholes. Solutions such as Pi-hole and AdGuard Home are frequently promoted as comprehensive shields capable of blocking smart home telemetry and halting unwanted communication between connected appliances and remote servers.

When properly configured, these local DNS resolvers can successfully intercept and block a significant volume of routine network chatter from internet-connected devices. However, they ultimately function strictly as the designated DNS resolver for a local network, leaving a fundamental vulnerability exposed. Any hardware device can easily circumvent local network settings by utilizing its own hardcoded DNS provider, completely bypassing custom local filters.

If a smart television is programmed at the firmware level to query a public DNS provider—such as Google’s public servers—the local DNS sinkhole will never receive a request to resolve those domains. Because the queries never pass through the local filter, they fail to appear in monitoring logs, creating a dangerous false sense of security. The user believes their local defense measures are successfully silencing the television, while the device quietly resolves its telemetry destinations through external servers and communicates directly with the manufacturer’s infrastructure undetected.

While local DNS sinkholes alone cannot fully prevent hardcoded DNS bypasses, network-level firewalls offer a more robust defense, though implementing them requires advanced technical capabilities. Because smart televisions typically rely on conventional DNS protocols operating over standard network ports, administrators can theoretically implement network address translation redirection rules on a router to force all outgoing DNS queries back into a local sinkhole.

Executing this defense, however, requires a high-performance router or the installation of open-source router firmware such as OpenWrt. Such technical requirements far exceed the time and expertise the average consumer is willing to invest simply to prevent a television from gathering usage metrics. Furthermore, aggressive DNS redirection can sometimes disrupt normal device operation, causing the television to repeatedly timeout, fail software updates, or experience functionality degradation as it stubbornly attempts to reach its hardcoded destinations.

Additional complications arise when smart devices utilize encrypted DNS protocols over secure ports. Blocking or intercepting encrypted traffic demands sophisticated firewall rules that, if configured too restrictively, can disable the legitimate smart features the user paid to utilize.

Given the complexities and technical hurdles associated with network-level mitigation, many privacy advocates argue that the most reliable method for neutralizing smart television telemetry is to keep the display permanently disconnected from the internet.

While cutting off network access prevents the continuous transmission of usage data, research indicates that simply disconnecting a smart TV does not erase all stored telemetry. Televisions can continue accumulating data locally while offline, raising concerns that cached information could potentially be uploaded the moment the device reconnects to a network. To guarantee absolute privacy, the display must remain offline indefinitely.

Opting to keep a smart display permanently offline requires sacrificing all native smart features, including streaming applications, integrated user interfaces, and automated firmware updates designed to patch security vulnerabilities or introduce software improvements. Choosing this path effectively reduces the modern television to a traditional, "dumb" display unit.

To restore functionality safely, owners can connect trusted external hardware sources, such as a desktop computer, a dedicated media center PC, a gaming console, or a local storage drive loaded with media. By routing all entertainment through an external device, consumers can enjoy modern display panels without subjecting themselves to continuous background monitoring.

This ongoing privacy dilemma highlights a broader economic reality within the consumer electronics market. Budget and mid-tier smart televisions are frequently retailed at razor-thin profit margins, with manufacturers relying heavily on advertising, subscription services, and the monetization of collected consumer data to sustain profitability.

This financial model explains the virtual disappearance of traditional, non-connected televisions from the modern retail landscape. However, industry critics emphasize that consumers should not be forced to choose between purchasing an affordable smart television that compromises personal privacy or abandoning modern display technology altogether. As awareness of invasive telemetry continues to grow, pressure is mounting within consumer advocacy circles for manufacturers to reintroduce privacy-respecting display options and offer transparent pricing models that do not rely on surveillance capitalism.