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Clear Channel
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Clear Channel

Major US out-of-home advertising company with 500,000+ displays, named partner in Horizon Media's agentic HorizonOS Blu launch.

Last refreshed: 28 June 2026 · Appears in 1 active topic

Key Question

Can agentic buying bring performance-marketing budgets into out-of-home advertising?

Timeline for Clear Channel

#718 Jun

named outdoor media partner for HorizonOS Blu

Media's AI Pivot: Mentioned in: Horizon ships its own buying layer
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Common Questions
What is Clear Channel Outdoor and who owns it?
Clear Channel Outdoor is one of the world's largest out-of-home advertising companies, listed on the NYSE. It separated from iHeartMedia in 2019 following iHeartMedia's bankruptcy and now operates independently with 500,000+ displays globally.Source: event
How is Clear Channel Outdoor involved in AI advertising?
Clear Channel Outdoor was named as a launch partner for Horizon Media's HorizonOS Blu in June 2026, connecting its out-of-home display inventory to an agentic buying layer on the Model Context Protocol for automated real-time media buying.Source: event
Can billboards be bought programmatically through AI agents?
Digital billboard inventory from companies such as Clear Channel Outdoor can now be accessed through agentic buying layers like HorizonOS Blu on the Model Context Protocol, allowing AI agents to plan and purchase outdoor placements at machine speed alongside digital and broadcast buys.Source: event

Background

Clear Channel Outdoor was named as a launch partner for Horizon Media's HorizonOS Blu on 18 June 2026, making it one of the first out-of-home advertising networks to commit to agentic media buying via the Model Context Protocol. The partnership expands Horizon's agentic buying layer beyond broadcast and digital channels into physical billboard and transit display inventory.

Clear Channel Outdoor Holdings is one of the world's largest out-of-home advertising companies, operating more than 500,000 displays across North America, Europe, Latin America and Asia Pacific. The company separated from iHeartMedia (formerly Clear Channel Communications) in 2019 following iHeartMedia's bankruptcy, becoming an independent publicly listed company. Its inventory spans roadside billboards, transit advertising and digital screens in major urban markets, with digital out-of-home formats increasingly sold through programmatic channels.

Out-of-home advertising has historically operated on manual planning cycles measured in weeks. Connecting Clear Channel's digital display inventory to an agentic buying layer running on MCP could compress booking lead times to seconds, enabling campaign adjustments in response to real-time signals such as weather, sports scores or breaking news events. The format's long exclusion from performance-marketing budgets has stemmed partly from those slow turnaround times; faster, automated buying may bring new categories of advertiser spend into OOH for the first time.