The Maze: The smallest screen is about to command the biggest video-ad budget. US social network video is set to take 20.2% of total media ad spending in 2027, while linear and connected TV combined fall to 16.0%. In 2021, social video held just 7.7% against converged TV's 26.3%. This is not simply viewers swapping a sofa for a feed. It is advertising economics moving toward personalized inventory that can be tested, targeted, measured and bought by almost any advertiser.
A 19-point deficit becomes a nine-point lead. Social video's share rises from 7.7% in 2021 to 20.2% in 2027 and 23.5% in 2030. Converged TV moves the other way: 26.3%, 16.0% and 14.5%. By 2030, social video holds a nine-percentage-point lead and a share roughly 62% larger than television screens combined. The forecast excludes YouTube from social video, making the shift more striking: it is paid video inside social networks, apps and games doing the overtaking.
Streaming grows, but cannot repair linear TV's decline. Connected TV increases from 5.3% of total media ad spending in 2021 to 7.9% in 2027 and 9.1% in 2030. Linear TV falls from 21.0% to 8.1% and then 5.4%. CTV therefore adds 3.8 points across the decade, while linear loses 15.6. The combined pool shrinks because streaming's gains do not replace the broadcast and cable money leaving the market. Television still owns scarce live events and big-screen emotion, but its digital upgrade is not enough to defend its aggregate share.
Personalization turns attention into cheap, scalable inventory. A feed can assemble a different sequence for every user, learn from each swipe and sell the next impression immediately. That mechanism expands supply for local businesses, small brands and performance campaigns that rarely bought national television. It also makes raw creator-style production commercially useful. Current IAB research points the same way: social-video spending was expected to grow 13% in 2026 versus 11% for CTV, helped by AI personalization and creator-economy investment. IAB includes YouTube in social video, so the percentages are not directly comparable; the direction is.
The smart response is a portfolio, not a funeral. Social video and television do different work. In an EMARKETER and Smartly study, 78.4% of marketers ran both. Some 55.2% adapted the same creative core for each environment, while only 24.1% built separate creative. Social delivers fast feedback and performance signals. CTV adds immersion, shared viewing and premium context. The crossover says the planning hierarchy has flipped: television increasingly needs to justify its role beside the feed, rather than the feed being the experimental add-on.
Why it matters: For ecommerce operators, the budget shift pulls more product discovery, creative testing and measurable response into social platforms. That can shorten the path from entertainment to checkout, but it also makes brands more dependent on opaque recommendation systems and relentless content supply. Television will still build memory and reach. Social video increasingly decides which products get found, tested and scaled. The winning media plan will connect those roles without pretending a six-second vertical clip and a living-room spot are interchangeable.
