I have a Roku 3 and a TV with internet only, no tv provider. I want to subscribe to the CNN $6 monthly subscription. Can’t make it work because keeps asking for my tv provider.
I think you’re thinking of CNN+ which was a separate subscription service that shut down in April, because CNN’s new owner didn’t like the idea of individual streaming channels.
https://www.cnn.com/2022/04/21/media/cnn-shutting-down/index.html
The CNN app that remains is the one that requires a provider of some sort.