Measurement
State of Play
Revised Nov 1, 2026The moment. The count changed what it counts. Comscore’s new Score Report ranks TV and streaming by share of ad-exposure time rather than viewing, and its first reading puts broadcast at 43.2%, cable at 34.5% and streaming at 22.3%. VideoWeek has NBCUniversal and Versant leading the August table at 17.5%, with a merged Paramount-WBD set to top it at 23.9%. iSpot’s Q3 report has streaming splitting ad revenue evenly with linear even though linear still delivers the vast majority of impressions, which is the same gap seen from the money side. Political money is the other pressure on the count: forecasters now project $12 billion for the 2025–26 midterm cycle, with local broadcast holding 50% of the $11.038 billion spent cycle-to-date against CTV’s 21%, and eMarketer has that spending crowding holiday marketers out of TV and CTV inventory.
The tension. Buyers want more precision from a surface that shows them less. Nielsen found 55% of marketers trust AI-generated recommendations only when a human verifies them, and says the share prioritizing measurement precision has doubled year over year. AdExchanger’s guest column argues B2B buying has moved into AI assistants, private messages and dark social that ad tech cannot observe. Extreme Reach’s John Batter says the industry still has no creative ID to tie ad variants to masters or production cost to outcome, and AI is multiplying the variants. The platforms are supplying the proof themselves: OpenAI’s Ads Manager now imports 30 days of aggregate Google Analytics 4 data so advertisers can run attribution comparisons inside it, and a six-month WPP Media study with Amazon Ads is the evidence offered that streaming moves sales. TVREV’s Sofie Sue Rutgeerts argues attention is a middle step, not the outcome. The sell side keeps answering the measurement question with its own numbers.
Who’s moving. Comscore, counting ad exposure instead of viewing. Comscore again, reporting Q3 results on November 3. iSpot and TVREV’s Jason Damata, on revenue parity at a fraction of the impressions. Extreme Reach’s John Batter, on the missing creative ID. OpenAI, wiring GA4 into its own ads manager. MediaPost’s Joe Mandese, on $12 billion and CTV’s 21%. eMarketer’s Marisa Jones, on political crowding out the holidays. Truthset and Aristotle, verifying identity on political CTV buys. Databricks, pitching prediction over impressions. Nielsen, with streaming at 58% of minutes for the top animated series. eMarketer’s Asa Hiken, on CTV conversion rates rising. Nielsen again, confirming a WNBA Finals Game 1 record of 1.76 million viewers.
What the desk is watching. Whether buyers start pricing on Comscore’s exposure share rather than viewing share, and whether the November 3 call puts revenue behind the new report.
Truthset, Aristotle pair up on political CTV ad targeting accuracy
The Measure’s Jon Lafayette reports that Truthset and Aristotle International are partnering to bring identity verification to political ad buying on connected TV.
SMBs know AI search matters but can’t yet measure it
eMarketer’s Peter Clark reports that small and midsize businesses increasingly see AI search visibility as critical to their marketing, yet most still struggle to measure its actual impact on their business.
iSpot: streaming matches linear ad revenue despite far fewer impressions
TVREV’s Jason Damata reports on iSpot’s Q3 Ad report, which found streaming now splits ad revenue evenly with linear even though linear still delivers the vast majority of impression volume.
XR’s Batter calls for industry-wide creative ID system
The Measure reports that Extreme Reach CEO John Batter says the industry lacks a creative ID structure to connect ad variants to masters, track rights compliance by region, and link production costs to media outcomes as AI speeds up variant creation.
Nielsen confirms WNBA Finals Game 1 set a viewership record
Nielsen is reporting that Game 1 of the WNBA Finals between Atlanta and Golden State drew 1.76 million viewers on NBC on October 17.
The Drum series probes why marketing ROI proof keeps getting harder
The Drum reports that the second episode of its documentary series “The Great Marketing Makeover” features leaders from Salesforce, Mars and Estée Lauder discussing the collapse of the traditional marketing funnel.
Nielsen: 98% of marketers now use AI, but trust hinges on verification
Nielsen reports that nearly 90% of marketers now use AI, with 55% trusting AI-generated recommendations only when paired with human verification, and that marketers prioritizing measurement precision has doubled year over year.
Political ad spending squeezes holiday TV and CTV inventory
eMarketer’s Marisa Jones reports that off-cycle political advertising is competing with holiday marketers for TV and CTV inventory, pushing up prices during a critical shopping window.
Comscore to report Q3 2026 earnings November 3
Comscore announced it will hold a conference call on Tuesday, November 3rd at 5:00 p.m. ET to discuss financial results for the third quarter ended September 30, 2026, with details on webcast and telephone registration access.
Ad Age/iSpot tracks new Nationwide, AT&T and Google Pixel TV spots
Ad Age reports that its daily Hot Spots roundup with iSpot.tv highlights new commercials, including Peyton Manning and Saquon Barkley promoting Nationwide’s financial services and Google touting Gemini Intelligence on the Pixel 11 Pro.
Opinion: AI research and dark social are breaking B2B ad measurement
AdExchanger Guest argues that B2B buying decisions are shifting into AI assistants, private messages and dark social that ad tech can’t observe, leaving attribution models crediting only the visible fraction of a buyer’s journey.
WPP Media study ties streaming VOD ads to measurable sales lift
Advanced Television reports that WPP Media, working with Amazon Ads, ran a six-month study testing whether advertisers who shifted TV budgets to streaming-on-demand saw real business results.
Midterm ad spend set to hit $12 billion as CTV lags broadcast
MediaPost’s Joe Mandese reports that political advertising forecasters now project the 2025-26 midterm cycle will total $12 billion, with linear local broadcast TV still accounting for 50% of the $11.038 billion spent cycle-to-date versus CTV’s 21% share.
NBC Nightly News gains in both viewers and demo for week of Oct. 12
Adweek’s Mark Mwachiro reports that NBC Nightly News with Tom Llamas was the only evening newscast to grow in both total viewers and the Adults 25-54 demo for the week of October 12.
Cable news ratings: Fox, MS NOW and CNN all post weekly gains
Adweek’s Mark Mwachiro reports that all three major cable news networks posted gains in total viewers and the Adults 25-54 demo for the week of October 12.
OpenAI Ads Manager adds beta GA4 integration for attribution checks
OpenAI’s help center details a new beta feature letting advertisers connect Google Analytics 4 to OpenAI Ads Manager, importing 30 days of aggregate event, campaign and revenue data for attribution comparisons and, where eligible, campaign optimization.
Nielsen’s Gauge: TV usage falls 4.4% in August as World Cup glow fades
Nielsen reports that total TV usage dropped 4.4% in August as the post-World Cup lull and back-to-school season cooled viewing.
YouTube’s TV viewing share hits record 15.8% in August
TheWrap’s Lucas Manfredi reports that Nielsen’s Media Distributor Gauge shows YouTube grew its TV viewing share 6% to a record 15.8% in August, even as overall TV usage fell 4.4% post-World Cup.
iSpot’s SAGE finds Wells Fargo’s celebrity ads win likes, not purchase intent
The Measure’s Eleanor Semeraro reports that iSpot’s AI agent SAGE analyzed Wells Fargo’s Steve Martin and Martin Short campaign and found it consistently beats brand norms on Likeability by 55 points.
Chartbeat: global engaged site time holds steady, but regions diverge
The Measure reports that Chartbeat’s Q3 data shows engaged site time holding roughly steady worldwide, with the Middle East down 2.1 seconds versus Q2 and North America up 0.8 seconds, underscoring that audiences everywhere want publishers to get to the point faster.
Polsat overtakes WBD as top content distributor in Poland
Nielsen reports that Polsat captured a 19.05% audience share in September, overtaking Warner Bros. Discovery’s 18.41% to claim the top spot in Poland’s distributor rankings for the first time in 2026, fueled by live volleyball coverage.
eMarketer: duplication across CTV apps is capping incremental reach
eMarketer’s Asa Hiken reports that CTV marketers can unlock incremental reach by cutting audience duplication across streaming apps and platforms.
MediaPost clarifies iSpot’s MLB ad-spend methodology shift
MediaPost’s Wayne Friedman clarifies that iSpot’s 2025 MLB estimates included regional sports network data, while 2026 figures exclude RSNs, now classified “digital only,” comparing national linear-only spend of $358.76 million in 2025 to $319.96 million in 2026.
TV’s CAPI push aims to copy Meta and Google’s conversion tracking
Next in Media’s Mike Shields reports that CTV players like Roku, Netflix, Comcast and DIRECTV are rolling out conversion APIs, server-to-server links that match ad exposure to sales, to replicate the feedback loop Meta and Google already have.
Comscore launches monthly report tracking ad exposure across TV platforms
Comscore is reporting that its new Score Report shows broadcast platforms capture 43.2% of Share of Ad Exposure Time, versus 34.5% for cable and 22.3% for streaming, despite streaming’s larger viewership base.