Yes. Prime has a certain amount of stuff available for free to anyone with a Prime Membership. The lineup of free stuff changes from time to time.This subscribe stuff...it costs more than just a Prime membership?
I'm still watching the looney tune show...I'm having to pay attention because most of it is in French or something so I'm having to read it.
You can also purchase access to additional "channels" like Britbox, Acorn, AMC etc. Channel subscriptions are an additional monthly fee. AND Amazon also has content (movies and shows) available to buy or rent for a one-time fee. I don't think need a Prime membership for channels subscriptions, purchases or rentals. You do need a membership for the free stuff.