# Streaming Hit 45.6 Percent of Ad-Supported TV. The Verification Stack Is Catching Up. > Utzschneider named the Nielsen Gauge controversy as the inflection that pushed verification vendors off the linear playbook. - Publication: The State of Streaming - Section: Measurement & Data - Published: 2026-05-03T00:00:00.000Z - Byline: The State of Streaming Staff - Canonical URL: https://thestateofstreaming.com/measurement-data/2026/05/ctv-transparency-ad-supported-default-ias/ - Read time: 6 min ## Summary Streaming reached 45.6 percent of U.S. ad-supported TV viewing in Q4 2025, making it the largest single TV segment. IAS CEO Lisa Utzschneider used that data to launch IAS Total TV on April 27, 2026, the latest in a four-month sequence of CTV transparency products — alongside DoubleVerify's DV Authentic Streaming TV... ## Key facts - Streaming reached 45.6 percent of U.S. ad-supported TV viewing in Q4 2025, ahead of broadcast at 29.6 percent and cable at 24.8 percent, with total ad-supported TV at 74.2 percent of all U.S. TV consumption, per Nielsen's Q4 2025 Ad Supported Gauge (released February 4, 2026). - Integral Ad Science CEO Lisa Utzschneider launched IAS Total TV on April 27, 2026 at the POSSIBLE conference in Miami Beach, with Disney, NBCUniversal, Paramount, and Amazon's Prime Video as named publisher partners; the product reports show, program, genre, rating, and language signals to buyers through the IAS Signal UI (Integral Ad Science press release, April 27, 2026). - DoubleVerify launched DV Authentic Streaming TV at CES 2026 on January 6, four months before the IAS Total TV launch, with an identical 'linear-like' transparency pitch; DoubleVerify's own research cited 15 percent of CTV programmatic transactions occurring outside premium streaming environments, representing more than $1 billion in misplaced spend per quarter (DoubleVerify newsroom, January 6, 2026). - IAB Europe opened a CTV Measurement Framework and Transparency Principles for public comment on April 30, 2026, citing research that only 30 percent of advertisers and publishers report full visibility into where CTV ads run and fewer than half use quality verification tools (IAB Europe, April 30, 2026). ## Why it matters The convergence of vendor product cycles and standards-body activity in early 2026 reads as the supply-side response to a measurement vacuum that opened when ad-supported streaming overtook the linear default, with the Nielsen Gauge methodology controversy — in which Nielsen postponed its February 2026 Gauge report after sell-side pushback on a methodology change — as the moment Nielsen-as-sole-currency stopped being the default assumption for buyers. Buyers should evaluate IAS Total TV, DV Authentic Streaming TV, the IAB Tech Lab Programmatic Governance Council, and the IAB Europe CTV Measurement Framework against one another, not in isolation. ## What to watch - IAB Europe CTV Measurement Framework public-comment window closes early summer 2026; the signal to watch is whether U.S. IAB Tech Lab proposes a parallel CTV transparency framework by Q3 2026, which would confirm the framing has crossed the Atlantic into the standard-setting body that governs U.S. programmatic. - MRC accreditation timeline for IAS Total TV: DoubleVerify earned MRC CTV viewability accreditation in April 2024 — watch for whether IAS files for the same stamp within 12 months of the April 27, 2026 Total TV launch, and whether Disney, NBCUniversal, Paramount, or Prime Video sign exclusive agreements with one verification vendor before the fall 2026 upfront planning cycle. - Q2 2026 ad-tier revenue disclosures from Disney, NBCUniversal, Paramount, and Prime Video — the four named IAS Total TV partners — particularly Disney's first quarter without standalone Disney+ and Hulu subscriber reporting; and whether Roku or Samsung Ads launch a competing ACR-based CTV transparency product before the end of 2026. ## Article Ad-supported streaming is the new linear, on the math. [Nielsen's Q4 2025 Ad Supported Gauge](https://www.nielsen.com/news-center/2026/football-and-younger-viewers-drive-ad-supported-tv-viewing-to-2025-high-nielsens-q4-2025-ad-supported-gauge-finds/), released February 4, put 74.2 percent of U.S. TV viewing on ad-supported platforms in the quarter, with streaming at 45.6 percent, broadcast at 29.6 percent, and cable at 24.8 percent. Streaming is no longer the upstart in the ad-supported pool. It is the largest source of ad-supported viewing the U.S. market produces, by a margin wider than the gap between broadcast and cable. What hasn't followed the dollars is the reporting infrastructure. Linear TV's spec sheet — show-level, program-level, genre-level, rating-level placement signal — was the unit advertisers transacted on for 30 years. CTV scaled past linear's share without inheriting that standard. Buyers transacting on premium streaming CTV could see device, geography, and viewability; show, genre, and rating moved through opaque publisher reporting if they moved at all, with the [Video Privacy Protection Act of 1988](https://en.wikipedia.org/wiki/Video_Privacy_Protection_Act) cited regularly as the legal hinge streamers used to keep placement data inside their walls. The vacuum is what the early-2026 product cycle is pricing against. [[Lisa Utzschneider](/people/lisa-utzschneider/), CEO of [Integral Ad Science](/companies/integral-ad-science/) (IAS), the privately held ad-verification firm acquired by Novacap in December 2025](https://www.linkedin.com/posts/lisa-utzschneider-43345ba_streaming-has-rapidly-transformed-how-audiences-activity-7454512225437790208-M2b6), put the IAS frame on the gap this morning on LinkedIn, citing Nielsen's numbers as the demand signal under [IAS Total TV](https://integralads.com/insider/ias-launches-total-tv-solutions-for-connected-tv/), the company's CTV measurement suite that launched at the POSSIBLE conference in Miami Beach last week. ["Streaming has rapidly transformed how audiences consume television," she wrote. "According to Nielsen, 74.2% of all U.S. TV viewing is ad-supported, with streaming accounting for 45%. As streaming continues to grow at this scale, advertisers are increasingly seeking the same level of transparency they once relied on with traditional TV."](https://www.linkedin.com/posts/lisa-utzschneider-43345ba_streaming-has-rapidly-transformed-how-audiences-activity-7454512225437790208-M2b6) Total TV reports show, program, genre, rating, and language signals through the IAS Signal UI; the named partners are Disney, NBCUniversal, Paramount, Amazon's Prime Video and Amazon MGM Studios, and opted-in publishers from Publica, IAS's ad-server platform. As streaming continues to grow at this scale, advertisers are increasingly seeking the same level of transparency they once relied on with traditional TV. Utzschneider's posting cadence on this topic is thin: two LinkedIn posts in the trailing 60 days, both product-launch announcements under her byline. It's the cadence of a CEO who talks when her company ships. The voice that matters here is the one the market expects to hear from when the largest pure-play ad-verification vendor announces its largest CTV measurement product. She is well-positioned to know what buyers are asking for. She is also selling. ## The four-month transparency-product flurry The IAS launch is one move in a four-month sequence. [DoubleVerify Holdings (NYSE: DV) shipped DV Authentic Streaming TV at CES](https://doubleverify.com/company/newsroom/doubleverify-launches-dv-authentic-streaming-tv-at-ces-2026) in early January with a near-identical "linear-like" pitch and Mark Zagorski's CEO framing that "the industry has been demanding better transparency and addressability in streaming TV." DV cited its own research on the size of the gap: 15 percent of CTV programmatic transactions occurring outside premium streaming environments, more than $1 billion of misplaced spend per quarter, nearly 70 percent of marketers unable to justify CTV investment without better transparency. Six days before the IAS announcement, [the IAB Tech Lab launched a Programmatic Governance Council](https://www.prnewswire.com/news-releases/iab-tech-lab-launches-industry-council-to-address-transparency-in-200b-us-programmatic-ad-market-302748778.html) with 13 founding members and zero direct advertisers, [a seating chart MediaPost flagged as the structural gap](/advertising-adtech/2026/04/iab-tech-lab-pgc-leap-launch/). Three days after the IAS launch, [IAB Europe opened a CTV Measurement Framework and Transparency Principles for public comment](https://iabeurope.eu/transparency-is-largest-obstacle-in-ctv-reveals-research-from-doubleverify-and-iab-europe/) with the standards-body data on the gap: 30 percent of advertisers and publishers report full visibility into where CTV ads run, fewer than half use quality verification tools, 27 percent lack consistent insight into brand suitability. Walked across a four-cell rubric, the moves cover overlapping ground with different reach: - **Show/program/genre signal:** IAS Total TV publishes it from publisher metadata feeds. DV Authentic Streaming TV builds on its [IMDb data licensing](https://doubleverify.com/company/newsroom/doubleverify-launches-dv-authentic-streaming-tv-at-ces-2026) for program-level signal. IAB Europe codifies it as principle. PGC silent. - **Supply path:** PGC's Dynamic Traffic Engine is the on-the-ground attempt; the vendor products lean on supply-path signals as inputs rather than outputs. - **Brand suitability:** all four cite it; only the vendor products execute it pre-bid. - **MRC accreditation:** DV is the platform-by-platform accreditation incumbent — first on [YouTube viewability in 2022](https://www.businesswire.com/news/home/20220419005301/en/DoubleVerify-Earns-MRC-Accreditation-for-Independent-Third-Party-Viewability-Reporting-on-YouTube), [first on CTV in 2024](https://www.businesswire.com/news/home/20240424242355/en/DV-Earns-MRC-Accreditation-for-CTV-Viewability-Reinforcing-its-Leadership-in-Pre--and-Post-Bid-CTV-Measurement), [first on TikTok this April](/measurement-data/2026/04/doubleverify-tiktok-mrc-accreditation/). IAS has not announced MRC accreditation for Total TV; on YouTube, IAS trailed DV by roughly 24 months on the same stamp. The vendors say the same words and walk to the same buyer. The standards bodies put the same gap in the public record. [The Trade Desk (NASDAQ: TTD)](/advertising-adtech/2026/04/trade-desk-ventura-ecosystem-pivot/) founder Jeff Green, on stage at POSSIBLE the same week, framed the broader pressure point without naming a verification product: ["in the last month, we've done more to clean up the supply chain than we did in the last year."](https://www.mediapost.com/publications/article/414674/trade-desks-jeff-green-says-ad-supply-chain-is-be.html) The convergence is the datapoint. Four parallel responses to the same vacuum, in roughly four months. ## Where Nielsen's monoculture cracked The unspoken backdrop is what changed about Nielsen in the same window. The 2024–2025 transition to Big Data + Panel was meant to keep Nielsen's currency-grade product relevant against the streaming mix shift. The [Gauge methodology controversy](https://www.thewrap.com/media-platforms/tv/nielsen-gauge-report-delay-methodology-adjustment/) — postponements, sell-side criticism of the methodology change, and Nielsen's own disclaimer, [as informitv noted](https://informitv.com/2026/04/14/nielsen-gauge-controversy/), that the Gauge figures do not reflect the ratings that inform advertising sales — corroded Nielsen's neutral-arbiter posture in a way the trade press hasn't fully metabolized. What that opens, structurally, is a role Nielsen historically owned alone. Vendor-built transparency products are stepping in. Total TV is one. DV Authentic Streaming TV is another. [Viant's pull-TVision-inside-the-DSP move](/measurement-data/2026/04/viant-tvision-attention-currency-acquisition/) is a third. None is a currency replacement; all are reporting layers that price against the assumption that Nielsen alone can carry the burden of cross-publisher CTV measurement. The 74.2 percent / 45.6 percent Nielsen number is the launch ramp Utzschneider used. The Nielsen brand can't carry the rest of the trip. ## The publisher signal in the named-partner list The most under-read element of the IAS launch is the partner list itself. Disney, NBCUniversal, Paramount, and Prime Video agreed to expose programming-level metadata to a third-party verifier — the same metadata streamers have spent five years citing the VPPA to keep inside their walls. AdExchanger reports IAS says Total TV is structured to comply with VPPA; that is IAS's claim, not an independent legal review, and the legal posture has produced material streamer litigation. But the contractual willingness from four of the five largest U.S. ad-supported streaming sellers to feed show, genre, and rating data to a verification vendor is itself a signal that the publisher side has decided pre-bid transparency is now the price of carrying ad-tier supply at the scale Nielsen's data describes. Netflix is the operator most absent from the list. It is also [the operator that just disclosed more than 60 percent of new sign-ups on its ad tier](/platforms/2026/04/netflix-q1-2026-buyback-ad-tier/) and a base over 4,000 advertisers. What follows from the convergence is a [verification-incumbent land grab](/opinion/2026/04/independent-adtech-stack-walled-garden-thesis/). The vendor that books the most exclusive publisher relationships, on the cleanest contractual terms, with the soonest path to MRC accreditation, sets the procurement default for the next upfront cycle. Two assumptions under that read are real and falsifiable: that the named partners do not signal with both DV and IAS simultaneously (the open question on Disney, NBCUniversal, Paramount), and that MRC accreditation continues to be the buyer-side credential that defines currency-adjacent procurement. If either breaks, the convergence is a vendor-pitch wave, not a category structural shift. The [IAB Europe public-comment window](https://iabeurope.eu/transparency-is-largest-obstacle-in-ctv-reveals-research-from-doubleverify-and-iab-europe/) is the next standards-body checkpoint, with comments due in early summer. Whether the U.S. IAB Tech Lab proposes parallel CTV transparency principles is the cross-Atlantic test. MRC accreditation watch on Total TV and DV Authentic Streaming TV runs alongside, with DV's pattern setting the timing benchmark. Q2 ad-tier disclosures from the named partners, particularly Disney's first quarter without Disney+ and Hulu subscriber reporting, will tell buyers whether the publisher side is monetizing the transparency it just exposed. The piece still missing: a counter-launch from Roku or Samsung Ads, the smart-TV operators whose [ACR data](/tech/acr-automatic-content-recognition/) has been the alternative path into CTV reporting and who have so far stayed out of the verification-incumbent product lane. The cleaner read of the four-month flurry is that the vendor category has decided ad-supported streaming is now linear's procurement equivalent, and is racing to ship the reporting layer linear had 30 years ago. The slower read is that the publishers and standards bodies have decided the same thing, and the convergence is what the market does when an old monoculture stops carrying its load. ## Entities - Companies: Integral Ad Science, DoubleVerify Holdings, Nielsen Holdings, IAB Tech Lab, IAB Europe, The Walt Disney Company, Comcast Corporation, Paramount Skydance Corporation, Amazon.com, Inc., Novacap, Vista Equity Partners, The Trade Desk, Media Rating Council - People: Lisa Utzschneider - Products: IAS Total TV, DV Authentic Streaming TV, Nielsen Ad Supported Gauge, Publica, IAS Signal UI ## Tags - ctv-measurement - ad-supported-streaming - verification - IAS - IAS-Total-TV - DoubleVerify - DV-Authentic-Streaming-TV - Nielsen - nielsen-gauge - IAB-Europe - IAB-Tech-Lab - Lisa-Utzschneider - CTV-advertising - VPPA - mrc-accreditation ## Sourced claims - Ad-supported television represented 74.2% of overall U.S. TV viewing in Q4 2025, with streaming at 45.6%, broadcast at 29.6%, and cable at 24.8%, per Nielsen's Q4 2025 Ad Supported Gauge release on February 4, 2026. — Nielsen Q4 2025 Ad Supported Gauge: https://www.nielsen.com/news-center/2026/football-and-younger-viewers-drive-ad-supported-tv-viewing-to-2025-high-nielsens-q4-2025-ad-supported-gauge-finds/ - Lisa Utzschneider remained CEO of Integral Ad Science through and after the Novacap take-private acquisition that closed December 23, 2025 at approximately $1.9 billion, after which IAS common stock delisted from NASDAQ. — SEC EDGAR — IAS / Novacap closing press release, December 23, 2025: https://www.sec.gov/Archives/edgar/data/1842718/000114036125046475/ef20061707_ex99-1.htm - Lisa Utzschneider posted on LinkedIn citing Nielsen's 74.2% / 45% data and announcing IAS Total TV: 'As streaming continues to grow at this scale, advertisers are increasingly seeking the same level of transparency they once relied on with traditional TV.' — Lisa Utzschneider on LinkedIn: https://www.linkedin.com/posts/lisa-utzschneider-43345ba_streaming-has-rapidly-transformed-how-audiences-activity-7454512225437790208-M2b6 - IAS launched IAS Total TV on April 27, 2026 at the POSSIBLE conference in Miami Beach, with The Walt Disney Company, NBCUniversal, Paramount, Prime Video, Amazon MGM Studios, and opted-in publishers from Publica named as partners; the product reports show, program, genre, rating, and language signals through the IAS Signal UI. — Integral Ad Science (IAS Insider): https://integralads.com/insider/ias-launches-total-tv-solutions-for-connected-tv/ - Srishti Gupta, IAS Chief Product Officer, said in the IAS press release: 'Transparency is the key to turning CTV impressions into targeted engagement. IAS Total TV serves as a visibility engine between buyers and sellers.' — Integral Ad Science (IAS Insider): https://integralads.com/insider/ias-launches-total-tv-solutions-for-connected-tv/ - Dana McGraw, SVP of Data and Measurement Science at Disney Advertising, said in the IAS release: 'As advertisers continue to double down on connected TV, the need for greater visibility and performance insight has never been more important.' — Integral Ad Science (IAS Insider): https://integralads.com/insider/ias-launches-total-tv-solutions-for-connected-tv/ - DoubleVerify launched DV Authentic Streaming TV at CES 2026 on January 6 with Mark Zagorski quoted: 'The industry has been demanding better transparency and addressability in streaming TV, and today DV is delivering it.' — DoubleVerify newsroom: https://doubleverify.com/company/newsroom/doubleverify-launches-dv-authentic-streaming-tv-at-ces-2026 - DoubleVerify cited research finding that 15% of CTV programmatic transactions occur outside premium streaming environments, equating to over $1 billion in misplaced spend each quarter, and that nearly 70% of marketers cannot justify CTV investments without better transparency. — DoubleVerify newsroom: https://doubleverify.com/company/newsroom/doubleverify-launches-dv-authentic-streaming-tv-at-ces-2026 - IAB Europe released a CTV Measurement Framework and Transparency Principles for public comment on April 30, 2026, citing research that only 30% of advertisers and publishers report full visibility into where ads run, fewer than half use quality verification tools, and 27% lack consistent insight into brand suitability. — IAB Europe: https://iabeurope.eu/transparency-is-largest-obstacle-in-ctv-reveals-research-from-doubleverify-and-iab-europe/ - IAB Tech Lab launched its Programmatic Governance Council on April 21, 2026 with 13 founding members across holdcos, publishers, SSPs, Amazon Ads and The Trade Desk, drawing MediaPost criticism for the absence of any direct advertiser. — IAB Tech Lab — Programmatic Governance Council launch (PR Newswire): https://www.prnewswire.com/news-releases/iab-tech-lab-launches-industry-council-to-address-transparency-in-200b-us-programmatic-ad-market-302748778.html - Nielsen postponed its February 2026 Gauge report to pause a methodology change incorporating the ARF/NORC DASH study after streamer pushback, rescheduling publication to March 24, 2026; the controversy reframed Nielsen as a vendor selling to the operators it measures (per informitv coverage published April 14, 2026). — TheWrap on Nielsen Gauge methodology delay: https://www.thewrap.com/media-platforms/tv/nielsen-gauge-report-delay-methodology-adjustment/ - AdExchanger reported that IAS says IAS Total TV is structured to comply with the Video Privacy Protection Act of 1988, the federal law streamers cite when withholding placement data from advertisers. — AdExchanger: https://www.adexchanger.com/?p=457448 - DoubleVerify earned MRC accreditation for CTV viewability in April 2024 and on April 23, 2026 became the first measurement vendor to earn MRC accreditation for TikTok video viewability. — DoubleVerify BusinessWire release, April 24, 2024: https://www.businesswire.com/news/home/20240424242355/en/DV-Earns-MRC-Accreditation-for-CTV-Viewability-Reinforcing-its-Leadership-in-Pre--and-Post-Bid-CTV-Measurement - Jeff Green, Trade Desk founder and CEO, said at the same POSSIBLE 2026 week as the IAS Total TV launch that 'in the last month, we've done more to clean up the supply chain than we did in the last year,' framing transparency as an industry-wide pressure point. — MediaPost (POSSIBLE 2026 coverage): https://www.mediapost.com/publications/article/414674/trade-desks-jeff-green-says-ad-supply-chain-is-be.html - Antenna's Q1 2026 State of Subscriptions report named the inflection: U.S. premium SVOD subscriber growth fell to +7% in 2025 — the first single-digit year — with ad tiers driving 71% of net adds across nine quarters. — Antenna State of Subscriptions: https://www.antenna.live/insights/antenna-q225-state-of-subscriptions-report-adds-and-ads - In Q4 2025, streaming accounted for 45.6% of U.S. ad-supported TV viewing — the largest single segment, ahead of broadcast (29.6%) and cable (24.8%), with streaming's margin over broadcast wider than the broadcast-cable gap — per Nielsen's Q4 2025 Ad Supported Gauge. — Nielsen Q4 2025 Ad Supported Gauge: https://www.nielsen.com/news-center/2026/football-and-younger-viewers-drive-ad-supported-tv-viewing-to-2025-high-nielsens-q4-2025-ad-supported-gauge-finds/ --- View this article in a browser: https://thestateofstreaming.com/measurement-data/2026/05/ctv-transparency-ad-supported-default-ias/ Browse the publication: https://thestateofstreaming.com/ Machine-readable index: https://thestateofstreaming.com/llms.txt