Magnite and ITN said on September 10, 2026 that they had widened their partnership to bring agentic artificial intelligence to local linear television buying, placing ITN's newly built seller agent inside Magnite's Orchestration layer and setting full integration for the fourth quarter of 2026.

In Short

Two advertising technology companies are letting software, rather than a person, handle most of the work of buying commercials on local TV stations. It matters because local TV has stayed slow and manual to buy while streaming moved to automated systems, so brands and agencies that want both have had to run two separate processes. Once the integration finishes later in 2026, you will be able to send one request covering local linear and streaming at the same time and let the agents draft the plan for a human to approve.

What the two companies are adding

The arrangement joins ITN's proprietary NXTv infrastructure to Magnite's ClearLine execution platform, according to Magnite. The stated result is real-time activation and optimization of local linear inventory and advanced audiences, delivered through an agentic workflow that hands routine setup steps to software agents while leaving approval with a human team.

According to the announcement, the agents generate impression-based forecasts and media plans, allowing buying teams to review, approve, and activate campaigns in one pass. Once a plan is approved, execution moves through Magnite's ClearLine infrastructure. Magnite (NASDAQ: MGNI) describes itself as the largest independent sell-side advertising company, and ITN as an advertising technology company focused on modernizing how local TV inventory is bought and activated across broadcast, cable, and streaming.

The distinction between the two firms matters for how the system works. ITN supplies the seller side, translating local station inventory into a form that automated buying can address. Magnite supplies the coordination and execution rails. The seller agent from ITN connects into what Magnite calls Orchestration, the coordination layer the company built to let buyer-side and seller-side agents communicate directly.

From a programmatic pipe to an agentic layer

The September announcement builds on a foundation the same two companies laid more than a year earlier. According to the companies' May 2025 announcement, ITN and Magnite delivered the first programmatic solution for local linear television in the United States, letting advertisers transact live linear ads from local stations through automated buying for the first time. That earlier step drew on ITN's local linear supply-side platform, which the companies said went live in late 2024 and connected to a supplier network of 75 broadcast ownership groups spanning more than 1,100 stations. ITN's technology translated local linear supply into biddable impressions and connected to Magnite's SpringServe ad server.

The companies framed the local television opportunity in commercial terms at the time. According to that 2025 announcement, the United States local TV advertising market was expected to reach 21 billion dollars for the year. The pitch then, as now, was operational: local linear had historically required its own workflow, its own deal structures, and its own teams, separate from the streaming buys sitting next to it in a media plan.

The current expansion adds a layer on top of that programmatic base. Where the 2025 work made local linear buyable through automated pipes, the 2026 step places software agents in front of those pipes to draft forecasts and plans. According to Magnite, the agentic workflow lets buyers move from planning to execution in a fraction of the time and significantly accelerates time-to-launch. The multi-week-to-hours compression the companies cite originates with that programmatic foundation; the agentic layer is presented as a further acceleration on top of it rather than the sole source of the speed gain.

Where Orchestration sits in Magnite's build

Magnite has assembled its agentic capabilities in stages across roughly a year, and the ITN integration attaches to the most recent piece. The company unified curation and activation within ClearLine on October 1, 2025, rebuilding the platform on the same infrastructure as its SpringServe video ad server and folding in technology from its September 2025 acquisition of streamr.ai. That architectural choice, letting curated campaigns execute closer to the impression, is the base the linear work now runs on.

The agent components followed. Magnite embedded its first seller agent into SpringServe in December 2025, running an initial test with Scope3 as the buyer agent and supporting the Advertising Context Protocol, an open standard for agents on both sides of a deal to exchange campaign requirements and match inventory. The company then added its own buyer agent on April 27, 2026, naming Disney Advertising, Spectrum Reach, Kepler, and MiQ among the participants.

Orchestration arrived after those pieces. Magnite opened the coordination layer on June 11, 2026, with dentsu and DIRECTV Advertising as the first beta partners, positioning it as neutral wiring that external buyer agents could connect into rather than a closed system requiring Magnite's own tooling. An analysis of the broader agentic stack published the following day described the design intent as agent-to-agent transactions, where automated systems on each side negotiate and complete buys without a human matching supply to demand at every step. The ITN seller agent slots into that structure, extending it from streaming supply into local linear.

One request across local linear and streaming

The commercial argument the companies make rests on collapsing two buying processes into one. According to Magnite, a buyer using its buyer agent can submit a single request for proposal and one budget covering both local linear and CTV, forecast omnichannel reach, book campaigns, and receive consolidated reporting. The stated aim is to remove the friction between linear and connected television buying so that advertisers plan, allocate, and optimize total television spend in a single place.

That framing reflects a wider industry effort to erase the operational divide between linear and streaming. Magnite applied a similar logic to national and cable supply earlier in 2026, when it brought AMC Global Media's linear television inventory into programmatic buying on April 15, 2026, unifying linear networks, FAST channels, and the AMC+ streaming service under a single ClearLine entry point. The ITN work applies the same unification impulse to local stations, a harder environment because inventory is fragmented across hundreds of individually owned outlets.

Local linear has been a contested target for automation more broadly. Gray Media routed its premium local inventory across 117 markets through Madhive's AI-driven demand-side platform in a June 2026 arrangement, consolidating supply access and layering political audience data on top. The competitive backdrop, in other words, is not empty. Several vendors are pursuing the same goal of making local television buyable with digital-style tooling, and each is doing it through a different combination of supply, data, and automation.

What Magnite and ITN executives said

Magnite framed the value of the integration around the friction of buying local stations by hand. According to Matt McLeggon, SVP of Advanced Solutions at Magnite, "Local linear TV remains a powerful medium for reaching audiences but the operational friction of buying local linear TV inventory has historically limited its growth." He added that bringing ITN's seller agent into Magnite Orchestration provides "a streamlined agentic process that bridges traditional IO-based workflows with programmatic execution," a reference to the insertion-order paperwork that direct television buying has traditionally required.

ITN placed the emphasis on time removed from the process. According to Craig Sulema, Chief Investment Officer at ITN, connecting the company's technology directly into Magnite's Orchestration layer means "we are eliminating weeks of back-and-forth operational drag." Sulema said the integration "enabl[es] both TV and digital buyers to execute local linear campaigns with unprecedented speed, efficiency and scale."

A named outside voice in the announcement offered a more measured read. According to Joe Cerone, Founder of Cerone Advisory Group, "What ITN and Magnite are building represents an important evolution for local linear television." He characterized the agentic addition as building on the programmatic foundation already in place and bringing the industry "another step closer to aligning local linear with the technology, workflows and expectations that define modern media buying" - an evolution rather than a break. Digital Marketing Group, cited as an early partner, framed the appeal around access to premium inventory at the pace of digital buying, according to the company's chief revenue officer and co-founder Dano Ehler.

The demand question behind the announcement

The stated purpose of the expansion is to grow demand for local linear television by increasing efficiency for traditional buyers while broadening access for digital-first ones. Whether that demand materializes at scale is the open question, and recent coverage has documented reasons for caution about agentic advertising's near-term commercial weight.

Magnite's own chief executive has set a modest ceiling. Michael Barrett capped his 2027 forecast for agentic advertising spend at somewhere between negligible and 700 million dollars in a comment reported on August 2, 2026, and framed AI agents as a way to remove menial tasks from traders and planners rather than a force that would displace the exchange function. Measured performance comparisons have also complicated the case for handing buying to agents: DataBeat found conventional buyers holding a 13.4 percent CPM advantage over AI agents in a June 2026 measurement, a gap that runs against the assumption that automated buying clears more cheaply.

The density of agentic announcements is itself a factor in reading any single one. June 11, 2026 alone produced four separate agentic product releases from Mediaocean, Magnite, Teads, and a Walmart Connect and Google DV360 partnership, according to prior reporting. The volume makes it hard for any one integration to stand out as a category first, and it raises the standard for distinguishing a shipped capability from a stated intention. The ITN integration is described as entering full integration in the fourth quarter of 2026, which places it in the category of announced roadmap rather than completed deployment at the time of the release.

Why this matters for the marketing community

For media buyers, the practical stake is workflow consolidation. Local television has remained one of the last large advertising categories bought largely by hand, through insertion orders and direct negotiation, while the streaming inventory sitting beside it in the same plan moved to automated buying. A system that lets one request and one budget cover both, with agents drafting the forecast and plan, addresses a real operational cost for teams that run cross-platform video campaigns. The value depends on execution quality once the integration ships, and on whether the agent-generated forecasts prove accurate enough for teams to trust without heavy manual correction.

For local broadcasters, the stake is monetization. Stations facing secular audience decline have a direct incentive to make their inventory as accessible and efficient to buy as possible, since volume growth is not the primary lever available to them. Reducing the friction that has kept digital-first buyers out of local linear is aimed squarely at that problem. ITN's role, translating hundreds of individually owned stations into addressable supply, is the piece that makes station-level inventory reachable through a single automated interface.

For the broader question of who controls automated buying, the integration is another data point in the contest to own the coordination layer. Magnite is positioning Orchestration as neutral infrastructure that outside agents can plug into, and the ITN seller agent is an example of a partner connecting into that layer rather than adopting Magnite's native tooling wholesale. How much advertising volume ultimately flows through agent-to-agent rails, and how quickly, remains unresolved, and the modest spend forecasts from the company's own leadership set the expectation against which this expansion will be judged.

Timeline

Summary

Who: Magnite (NASDAQ: MGNI), the largest independent sell-side advertising company, and ITN, an advertising technology company focused on local television activation, working with early partners including Digital Marketing Group.

What: An expansion of an existing partnership to bring agentic artificial intelligence to local linear television buying, integrating ITN's newly built seller agent into Magnite's Orchestration layer and joining ITN's NXTv infrastructure with Magnite's ClearLine execution platform, so that software agents generate impression-based forecasts and media plans for human review, approval, and activation across both local linear and connected television in a single request.

When: Announced September 10, 2026, with full integration set for the fourth quarter of 2026, building on the two companies' May 2025 programmatic local linear launch.

Where: The United States local television market, drawing on ITN's supply network of 75 broadcast ownership groups across more than 1,100 stations, with execution routed through Magnite's ClearLine infrastructure.

Why: To grow demand for local linear television by cutting the operational friction of buying it by hand, increasing efficiency for traditional buyers while broadening access for digital-first buyers who want local stations and streaming in one workflow, against a backdrop of modest near-term agentic spend forecasts and a crowded field of competing automation efforts.