The other day, it suddenly dawned on me that I have the YouTube app on my Samsung big screen 'smart' (connects to Internet) TV - so I opened the app and typed in one of the shows I wanted to watch - a TV miniseries from 1984 - and there it was - clicked on it and it streamed with excellent quality and no buffering issues.
So, over time I downloaded a few more - still haven't watched them as I prefer to watch movies on my big screen TV rather than on my computer (spend enough time in front of it as it is).
A while back I was viewing some YouTube videos and in the side panel where they list videos you might be interested in, was a full length movie - I clicked on it, noting it was good quality - I didn't have time or inclination to watch of it at that moment, so I downloaded it to my hard drive - that resulted in many more movies showing up in the side panel when I went to YouTube - scrolling through them, there were many that interested me since I had searched for them on my Android TV box but couldn't find an app that has a stream available.