[pier25]

TVs are terrible for handling audio. Either internally or via ARC/eARC. Not only in terms of codecs but also sync, surround, etc.

You best bet is buying a dedicated HT receiver and plugging your video sources into it (ATV, Nvidia, BluRay, etc).

It's worth noting the ATV does not have HDMI audio passthrough and the latest version has a ton of issues with Atmos:

https://discussions.apple.com/thread/253553714

https://www.martinloganowners.com/threads/2021-new-gen-apple...