Unless you use Plex, which allows your own content
Or just use an AppleTV, which comes with a built-in program called "Computer" that lets you stream your own content from any Mac on the LAN.
I have about 400 movies and thousands of TV shows that I stream this way, in subscription-free bliss.
The content comes from CDs, DVDs, and Blu-rays from the library or my own purchases; and I have a $20 gadget that records OTA TV shows and movies onto a USB stick.