The Apple TV 4K just got even more interesting for projectors in tvOS 18.2
In tvOS 18.2, Apple has added support for aspect ratios including 21:9. That's not going to be relevant to most people ...
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True Home Theater: tvOS 18.2 Beta Brings Support for 21:9 Projector Aspect Ratio
Apple on Monday seeded the first beta of tvOS 18.2 to developers for testing. The update brings the promised support for the 21:9 aspect ratio used by home theater projectors .