I watch Tubi for movies, archive.org for documentaries, and Philo for METV and the like.
Thanks for your reply. Tubi does list so many of the older
movies. They may not linger forever, at least they make an
attempt to share these gems with us for a time.
The truly old films are found on archive.org. As a last resort, often go there when search for a true classic broadcast or flick.