Fox now owns Roku. DOJ left the safeguards’ lifespan partly unclear.

Fox completed its roughly $22 billion acquisition of Roku on November 6 after the Justice Department closed an antitrust investigation into the deal. DOJ said it examined whether the merger could reduce competition among free, ad-supported streaming services and whether Fox could use control of Roku’s television platform to disadvantage rival content.

The government allowed the combination to close after Fox made four commitments covering non-Fox content, search results, application placement, third-party data products and firewalls around competitively sensitive partner data. DOJ gave a minimum term of three years for non-Fox carriage and the data firewalls. Its public statement gave no duration for the search, home-screen or third-party data-product promises. The central accountability question is how every promise will be monitored and what restrains Fox when the timed protections expire.

DOJ concluded that new free, ad-supported streaming providers could enter quickly enough to make substantial competitive harm unlikely. It also reasoned that Roku needs a wide range of content to attract viewers, that discrimination would damage the merged company financially and reputationally, and that consumers could move to other connected-TV platforms if Roku deteriorated.

Those are material defenses of the decision. Fox’s own closing release says Roku will remain open to thousands of applications and channels across more than 100 million households worldwide. The company says choice is central to Roku’s value and that it will preserve the platform’s openness.

The conflict DOJ investigated is nevertheless built into the merged company. Fox now owns news, sports and entertainment programming; the Tubi streaming service; the Roku Channel; and the Roku operating system that controls search, home-screen placement and access to viewer and advertising data. DOJ did not invent that concern: its closing statement says the division specifically considered whether Fox could use Roku to harm content rivals.

Fox committed to carry non-Fox content consistent with Roku’s historical practice for at least three years. It said it would not discriminate against non-Fox content in search results and would continue letting users rearrange applications on the home screen. It also promised to provide data products to third parties on commercially reasonable terms consistent with Roku’s standard distribution agreement.

The fourth commitment covers commercially sensitive partner data. Fox said it would maintain existing contractual firewalls for at least three years around information that can be inferred or collected from non-Fox providers’ commercial activity, including click, search, viewing and voice data.

DOJ’s public statement does not identify a filed consent decree, an independent monitor, reporting requirements, penalties for breach or an automatic extension beyond the stated minimum. That absence does not prove the promises are unenforceable; contracts, antitrust law and other legal obligations can still matter. It does mean the public statement leaves unanswered how compliance will be tested and what changes after year three.

The transaction gives existing Fox shareholders about 74% of the combined company and former Roku shareholders about 26%, according to Fox’s closing announcement. Roku founder Anthony Wood joined Fox’s board and became co-chair of a digital-platforms division that includes Roku, Tubi and Fox One. Fox projects about $400 million in annual cost savings within two years, but that projection does not establish where cuts or efficiencies will occur.

The deal’s scale is not itself proof of consumer harm. Roku’s need for outside content and the existence of competing television platforms give Fox reasons not to degrade access. New services can also discipline prices and conduct. DOJ says it will keep evaluating the industry and may act if facts change.

But the approval transfers a major gateway into the hands of one of the companies whose content passes through it. A neutral-platform promise is most valuable when the public can see the rule, the duration and the enforcement mechanism. DOJ described the conduct, gave a three-year minimum for two commitments and disclosed no duration for the other two, while leaving the monitoring and post-commitment regime unclear.

That is the accountability test for the merger: whether non-Fox services remain visible on equal terms, whether partner data stays separated, whether users retain control of the home screen and whether regulators publish evidence of compliance. Fox’s incentive to keep Roku useful is real. So is the new power to shape what more than 100 million households can find and what the platform learns about them.