I have a new AppleTV HD with 13.2 installed out of the box and the update to 13.3 shows an error, that the update failed (software was damaged). I can't even load the IPSW via ipsw.me (https://ipsw.me/download/AppleTV5,3/17K449). Seems something is wrong with Apples update servers. Strangely enough, I can download nearly every other IPSW for various devices, except tvOS 13.3 for the ATV HD. I get the mentioned error since thursday, on wednesday I updated another ATV HD to 13.3 without any problems.
I also can't update via finder (ATV connected over USB-C), same error (see screenshot)
I also can't update via finder (ATV connected over USB-C), same error (see screenshot)