Nielsen launches co-viewing pilot to sharpen TV measurement

MUMBAI: Nielsen is taking a fresh stab at one of television’s oldest blind spots: how many people are actually watching the same screen. The audience-measurement giant on February 4 unveiled a co-viewing pilot that uses wearable devices to better capture shared viewing, starting with America’s biggest broadcast stage.

The trial begins with Super Bowl LX on NBC on February 8, 2026, before extending to other high-profile live sports and entertainment events in the first half of the year. The goal is simple but commercially potent: count viewers more accurately, especially during live spectacles that pull families and friends to one screen.

The new approach leans on Nielsen’s proprietary wearable meters, wrist-worn devices that resemble smartwatches. These passively capture audio signatures from TV content, logging exposure to shows, films and live events without requiring viewers to sign in or self-report. In theory, fewer clicks, fewer lapses, better data.

Karthik Rao, Nielsen’s ceo, cast the move as part of a broader measurement push. He said the company’s task is to keep pushing accuracy as clients invest heavily in live programming that draws mass audiences. The co-viewing pilot, he added, builds on upgrades such as Big Data + Panel measurement, out-of-home expansion, live-streaming metrics and wearable-based tracking.

Co-viewing is not new territory for Nielsen, which has long tried to estimate how many people sit before a single set. What is new is the heavier integration of wearables and passive detection to reduce reliance on active inputs from panel homes.

For now, the pilot comes with caveats. Co-viewing estimates from the trial will not be folded into Nielsen’s Big Data + Panel ratings, which remain the industry’s trading currency. Instead, pilot findings will be shared with clients a few weeks after final Big Data + Panel ratings are delivered. Clients may disclose those findings publicly.

More impact data will follow later this year. Full integration into Nielsen’s marketing-intelligence suite is slated as a longer-term play, with a target of bringing co-viewing into currency measurement for the 2026–2027 season. This is only phase one, with further co-viewing enhancements planned beyond 2026 and additional timelines to be announced.

The push fits a wider pattern. Nielsen has in recent years expanded big-data integration, adopted first-party data for live-streaming measurement and broadened out-of-home tracking. It also positions itself as the reference point for streaming metrics through products such as The Gauge and the Nielsen Streaming Top 10.

In a market where billions of ad dollars hinge on decimal points, counting who is in the room matters. If Nielsen can pin down shared viewing, the humble sofa could become prime measurement real estate. The race to count every eyeball just found a new wrist to watch.