There is a website called 'JustWatch', which allows you to search for movies, and it will tell you what streaming service they are on (if any... includes Netflix, Disney+, Crave, Amazon, Tubi, Plex, etc.).
I did a search for World Without End... if it is the 1950s movie, it is not available on any streaming service.
No, it's a miniseries from not too long ago; in 8 parts.