Fox buys Roku for $22 billion; DOJ clears Paramount–Warner Bros. Discovery merger — TV OS and CTV consolidation in focus

Fox’s $22 billion acquisition of Roku and the Justice Department’s antitrust approval of Paramount’s merger with Warner Bros. Discovery dominated this week’s CTV narrative, with conversations at StreamTV in Denver shifting from studio mega-deals to the operating systems and formats that will matter to advertisers.

Fox–Roku: size and free-TV on-ramps

Fox paid $22 billion for Roku. Combined with Fox’s earlier acquisition of Tubi, that means Fox now owns both Tubi and Roku’s Roku Channel — described in the coverage as the two biggest on-ramps to free TV content. AdExchanger notes Fox had been left behind by Disney, Netflix and Amazon in terms of content library; the Roku deal aims to close that gap. Observers are divided: advertisers may welcome de-fragmentation into fewer platforms and dashboards, or they may object to changes in Roku’s independent status.

Paramount–Warner Bros. Discovery: DOJ sign-off

Paramount’s merger with Warner Bros. Discovery — a combination the coverage toys with naming as “PWBD” or another rebrand — was approved by the Justice Department’s antitrust group. The story highlights how studio consolidation is reshaping the broadcast/streaming landscape alongside platform deals.

StreamTV themes: formats, placements and TV operating systems

Reporting from StreamTV in Denver by Convergent TV Editor Alyssa Boyle flagged new CTV formats and placements on streaming app homescreens, smart TV sets, FAST channels and other inventory — Pause Ads got a shout-out. A recurring motif at the conference was TV operating systems. AdExchanger says advertisers and streaming media companies are “wising up” to the valuable data controlled by TV OS owners. The Trade Desk is pushing its TV OS, Ventura, and is reportedly looking for a new flagship client — it “was going to be Sonos but … womp womp.”

What this signals

These moves point to two simultaneous waves: studio consolidation that rebuilds content scale, and platform consolidation and control of viewer data via TV operating systems. For agency owners and buyers that work in CTV, the implication is clear — where measurement, access to homescreen placements and OS-level data sit will increasingly shape media strategy and tech partnerships. Expect client conversations to shift from reach to who controls on-ramps and first-party signals, and to watch advertiser reactions to deals that reduce platform independence.