Subscribe to podcasts on Mac
You can subscribe to podcasts you like — they’re free — and get new episodes automatically as soon as they become available.
In the Podcasts app
on your Mac, search to find podcasts, or click an item under Apple Podcasts in the sidebar on the left.Select a show to see its information page, then click the Subscribe button
.Ask Siri. Say something like: “Subscribe to this podcast.” Learn more about Siri.
To unsubscribe from a podcast, click the More button 
, then choose Unsubscribe.
You can automatically download new or unplayed episodes. See Change General preferences.
Tip: You can also subscribe to a podcast when you know its URL. Choose File > Add a Show by URL, enter the RSS feed URL, then click Subscribe. You can usually find the URL on that podcast’s web page.