YouTube TV advertising share lags behind 28% streaming viewership dominance

The discrepancy between viewership and revenue suggests that while consumer behavior has shifted toward YouTube on the big screen, legacy buying structures remain tethered to traditional content definitions. This gap protects linear broadcasters' higher CPMs by maintaining a distinction between 'polished' series and user-generated uploads. For the broader ecosystem, this indicates that capturing eyeballs is no longer enough to command top-tier ad rates without a corresponding shift in brand safety perceptions and agency compensation models. Watch for whether YouTube invests in high-profile scripted originals to bridge the 'premium' gap and force a revaluation of its inventory by media buyers.

YouTube's push to be classified as television inventory is gaining measurable traction among media buyers. A January 2026 survey of 288 media agency professionals in the U.S. and UK found that 62% of U.S. agencies and 85% of UK agencies plan to include YouTube in their connected-TV ad buys this year, signaling that the institutional resistance described in the source article is beginning to erode. The same research showed that 69% of U.S. agencies and 80% of UK agencies predicted they would use YouTube for more CTV campaigns in 2026 than in 2025, while a separate study based on actual ad spending data from Tinuiti clients found that 67% of U.S. YouTube campaigns purchased in Q4 2025 were attributed to TV screens.

The business case for reclassifying YouTube is being reinforced by budget reallocation data. Pixability's fifth annual agency study found that 81% of U.S. agency professionals expect YouTube spending to remain steady or increase in 2026, with only 4% anticipating a decrease. The study also identified US CTV ad spend and YouTube as the clear spending winners in 2025, with more than half of agencies reporting year-over-year budget increases across both channels, while traditional TV experienced the steepest pullback, with 37% of agencies reporting decreased spend. eMarketer reported that agencies are planning to increase their investment in YouTube as a core component of connected TV campaigns in 2026, reinforcing the shift from experimental to must-buy status.

The technical and strategic framing of YouTube as a multi-dimensional platform is also reshaping how agencies define the inventory. Pixability's survey found that agencies now define YouTube not only as a standalone video platform (73%) but also as a CTV platform (63%), a social platform (50%), and a direct response channel (30%), reflecting the complexity of categorizing it within traditional media plan structures. IPG's Nicola Westwood noted that as more TV broadcasters move content onto YouTube, advertisers are increasingly selecting as part of broader AV strategies, a dynamic that could narrow the gap between YouTube's 28% viewership share and its 12% ad share if brand safety perceptions continue to converge with linear TV standards.