life without iTunes
I am from an "older generation" and can't understand some things. Excuse what is probably a simple question.
If I upgrade to Catalina on my iMac, iTunes disappears. How do I watch movies I have stored on my computer on my TV through my AppleTV? Can't see where to put them and where they turn up on my smartTV.
A simple step-by-step explanation would be really appreciated.
Thank you.
iMac 21.5", macOS 10.14