CTV Just Passed Linear TV. Here Is What That Actually Means for Your Media Budget.

Tiger Tracks · Eye of the Tiger · Media Strategy · October 2026

Streaming accounted for 48.5% of US TV viewing in June 2026, against 19.8% for broadcast and 19.5% for cable [2]. The audience has moved. The money is moving more slowly, and that gap between where viewers are and where TV budgets sit is the planning problem for every media buyer heading into 2027.

The shorthand "CTV just passed linear" is true for attention and not yet true for advertising dollars. Understanding which half of that statement applies to which decision is what separates a disciplined reallocation from an overreaction.

1. Viewing Has Crossed Over; Ad Dollars Have Not

Two different crossovers are often blended into one headline. The first is viewing. In Nielsen's Gauge, streaming's share of TV viewing first exceeded broadcast and cable combined in May 2025 [1], and the gap has widened since [2]. The second is spending, and there the crossover is still ahead: eMarketer's forecast puts CTV at $46.89 billion in 2028, overtaking traditional TV at $45.10 billion for the first time [3].

The practical meaning for budgets is that the audience and inventory that used to live on broadcast and cable are migrating into streaming platforms, FAST apps and programmatic CTV placements. That migration alters how you buy, measure and optimize television-scale advertising. It does not mean linear is dead. It means linear is now a tactical tool, not the default allocation.

One caveat on the viewing data: Nielsen's Gauge is being recalibrated with new universe estimates from the Advertising Research Foundation's DASH service with the launch of the new TV season, and analysts expect the updated figures may show streaming with less dominance over broadcast and cable [2]. The direction of travel is not in question; the exact size of the lead may shift.

2. Budget Growth Concentrates in Digital Video and CTV

IAB projects US digital video ad spending will exceed $80 billion in 2026, growing 11% year over year, nearly 20% faster than the total ad market, and taking more than 60% of total TV/video ad spend for the first time [4]. Within that, IAB expects social video to grow 13% and CTV 11% [4]. Retail media is adding a commerce layer: eMarketer data reported by MediaPost puts US retail media CTV ad spending at just under $5 billion in 2025, expected to exceed $10 billion by 2028, or roughly 22% of total CTV ad spending [5].

For CFOs and procurement teams, the implication is that line items labeled "TV" will increasingly house digital line items, with different pricing behavior and measurement expectations than legacy buys.

3. CTV Now Supports Direct Response

The assumption that CTV equals brand awareness is outdated. Two developments change the equation. First, programmatic targeting, household-level geo-targeting and audience signals let advertisers reach narrower commercial cohorts inside CTV supply, which benefits lower-funnel tactics. Buyers have noticed: IAB found that targeting has overtaken content quality as the top criterion for TV/video investment, up 10 points year over year [4]. Second, retail media and shoppable CTV connect ad impressions to commerce data, which supports direct response measurement and attribution [5].

The strength of CTV for direct response still depends on the creative, the landing experience and the measurement design. Without attention and incrementality frameworks, measured lift is easily mistaken for true incremental sales.

4. Measurement Gaps Still Demand Rigor

Attention metrics, household-level viewability and robust incrementality testing are not yet standard across every CTV supply path. CMOs should insist on three changes. First, plan and budget for randomized or quasi-experimental incrementality tests where practical. Second, require transparent supply-path reporting and third-party validation for large buys. Third, integrate CTV exposure data into unified marketing measurement so incrementality is judged against total media investment. Those steps increase confidence that CTV spend is driving business outcomes rather than shifting where impressions are reported.

5. Reallocation Should Be Staged and Measured

Start by moving marginal or experimental spend into CTV channels where incrementality can be tested. That means shifting a portion of new campaign budget, or a small slice of linear spend, into programmatic CTV and FAST, with clear control groups and KPIs. Preserve linear buys that uniquely deliver scale for targeted demos or event-driven reach. Use geographic targeting in CTV to concentrate cost where it matters for distribution and serviceable markets, particularly for mid-market brands where local ROI matters. Finally, treat shoppable placements and retail media CTV as performance channels and negotiate measurement terms that include sales linkage or validated attribution.

6. Winning on CTV Requires Operational and Creative Change

Creative production, ad ops and data flows all have to adapt. Creative must be modular and designed for shorter decision windows and interactive formats. Ad ops needs to support programmatic pipelines, frequency management and FAST inventory optimization. AI is also entering the buy: IAB reports that 66% of digital video buyers are live with, testing or planning agentic AI, and another 28% are investigating it [4]. That affects testing cadence and production planning. On the data side, invest in tagging, household-level measurement and identity-resilient matching so exposure can be stitched to outcomes without relying solely on user-level identifiers.

7. Early KPIs Should Favor Incrementality Over Reach Metrics

Expect mixed outcomes while you iterate. Early CTV tests should focus on incremental reach versus existing linear plans, view-through and post-view conversions, and CPA or ROAS for shoppable placements. CPM and raw completion rates are not proof of business impact. Prioritize incrementality, relative audience efficiency and the cost to acquire a known customer through CTV. As measurement improves and retail media integrations scale, attribution for commerce outcomes should become clearer. Track progress quarter to quarter, not campaign to campaign, and budget a learning tax for measurement and creative experimentation.

Conclusion

Viewers have already made their choice; advertisers are still catching up, and the forecast crossover in spending is about two years away [3]. That window rewards brands that test now, while CTV inventory is still being priced and measurement standards are still being set. Platforms and algorithms will keep automating more of the buy, but deciding which audiences matter, what counts as proof and when to shift the next dollar remains a human call. That is the Human-Led, AI-Augmented advantage.

References

1. Nielsen. (June 17, 2025). Streaming Reaches Historic TV Milestone, Eclipses Combined Broadcast and Cable Viewing For First Time. https://www.nielsen.com/news-center/2025/streaming-reaches-historic-tv-milestone-eclipses-combined-broadcast-and-cable-viewing-for-first-time/
2. Friedman, W., MediaPost. (August 18, 2026). Streaming Climbs To 48.5%, Per Last Lame Duck Edition Of Nielsen's 'Gauge'. https://www.mediapost.com/publications/article/417308/
3. Wurmser, Y., eMarketer. (January 2, 2025). One of largest sources of new video ad inventory and spending is CTV. https://www.emarketer.com/content/one-of-largest-sources-of-new-video-ad-inventory-spending-ctv
4. IAB. (May 5, 2026). U.S. Digital Video Ad Spend to Surpass $80B in 2026; Growing 20% Faster Than the Total Ad Market, According to IAB. https://www.iab.com/news/u-s-digital-video-ad-spend-to-surpass-80b-in-2026/
5. Friedman, W., MediaPost. (April 16, 2025). Retail Media CTV Ad Spend Expected To Hit $5B In 2025. https://www.mediapost.com/publications/article/405101/

Published by Tiger Tracks. Eye of the Tiger Intelligence Series.