Co-viewing refers to multiple people watching ads together on a connected TV (CTV) device, a common behavior in streaming environments where households consume content collectively. The rise of streaming services and CTV has shifted audience consumption habits, making traditional single-viewer digital metrics less reflective of actual campaign reach.

With co-viewing metrics, you gain deeper insights into your audience, providing more accurate campaign reports and enabling fair comparisons between CTV, digital channels, and traditional TV.

Impressions (co-viewed) is the number of exposures to your ad, either to an individual or among multiple people watching together.

Also please note that Reach, Reach in TG, On-target %, Frequency, and TRPs metrics will only be calculated based on co-viewed impressions.

A co-viewing factor represents the likelihood of multiple viewers being present when an ad is served on TV screens. Since this likelihood varies by market, each market has its own co-viewing factor. Currently, co-viewing adjustments apply only to impressions served on TV devices.

Example (UK)
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Without Co-Viewing:

With Co-Viewing:

Here, the extra 0.3M impressions account for the additional ad impressions expected to be generated by people watching together on TV screens.