How do I enable a paramount subscription on my mac

If you subscribed to Paramount+ outside the Apple TV app, then that subscription is not suitable for Apple TV app Channel subscriptions.

If you subscribed with Paramount+ directly, then you may watch Paramount+ on your computer in the browser.

Open the TV App.

Click "Watch Now"

Scroll down to channels.

Select Paramount

You can subscribe there or, if you have already subscribed to the Apple TV channel, view content.