Multi-channel activation becomes essential strategy for proving CTV advertising value

Immediate adoption of multi-channel strategies is necessary as CTV moves from an experimental experimental buy to a core performance pillar. By linking streaming impressions to outcomes on other platforms, advertisers can finally bypass the measurement gaps that have historically plagued the fragmented CTV ecosystem. This shift forces a closer integration between streaming platforms and wider digital ad stacks, prioritizing interoperability over walled gardens. Watch for a rise in cross-platform attribution mandates in upcoming RFP cycles, as buyers seek to deduplicate reach across devices.

The push for multi-channel activation comes as U.S. CTV ad spending is projected to reach approximately $38 billion in 2026, a 14% year-over-year increase, according to eMarketer (February 2026). This growth is increasingly performance-driven; research from MNTN and Premion (March 2026) suggests that 70% of advertisers plan to increase their streaming TV budgets this year, with a heavy emphasis on outcomes like site visits and offline sales. Despite this capital flight from linear, 43% of buyers still cite platform fragmentation as a primary barrier to scaling their CTV operations.

To address these hurdles, the industry is moving toward standardized technical signaling. In May 2026, the IAB Tech Lab introduced updates to its technical specifications specifically to support standardized programmatic trading for new formats like pause and menu ads. This effort aims to reduce the manual labor currently required to activate across disparate streaming apps. Concurrently, major players are leveraging first-party data to bridge the gap between awareness and conversion. Per EMARKETER (January 2026), nearly 80% of marketers would increase CTV budgets by at least 11% if provided with greater transparency and more unified buying approaches.

Furthermore, the integration of retail media data into the CTV stack is accelerating. eMarketer forecasts that retail media CTV ad sales will grow to over $10 billion by 2028, as commerce signals allow for closed-loop measurement that was previously impossible. This multi-channel synergy is reflected in consumer behavior; according to tvScientific (May 2026), 78% of viewers use social media while watching TV, and 68% look up products immediately after seeing a streaming ad. Proving the value of CTV now depends on capturing these second-screen interactions through multi-channel orchestration.