Steve Moser, MacRumors:

According to code strings found in macOS Catalina, Apple will apparently allow videos to be downloaded for offline viewing, but with limitations on the total number of downloads, downloads per show or movie, or the total number of times a show or movie can be downloaded. For example, if a user tries to download the same video on multiple devices, the Apple TV app will inform them that “To download this episode of ‘The Morning Show’, delete it from another device and try again,” for example.

Glad to see that Apple TV+ will (apparently) allow downloads, just like Amazon Video and Netflix. When I travel, I always download videos for later consumption, since there are times when internet access is either spotty or limited in some way.