for example, if you google "a charlie brown christmas parent directory" you get the full movie instantly after clicking the second result and then the mp4 file (and there's no ads or anything like say 123movies)
this seems to work for most movies and you can download it by simply saving the video. doesn't seem to be as many options for TV shows tho afaik
Another easy way to stream films for free is Stremio, it's supposed to be for paid services but it's easy to install addons that stream directly from torrents. The UI is also pretty good and it'll remember how much you've watched if you don't finish stuff