I have a mobile data connection only where the carrier offers me free data for six hours post midnight. I can queue torrents on my phone(Yes, I torrent mainly on phone via Flud for Android) for downloading at night; then transfer the downloaded files to my laptop much later for viewing on a slightly larger screen. I couldn’t have done the same with say, Amazon Prime Video. Even if I could get these streaming services to queue at certain time, due to DRM restrictions, the content would only remain playable on phone.
Why are you not able to download shows that are on Amazon Prime Video? It’s not like those videos are special. They don’t have any DRM, you’re just downloading an mp4 or mkv.