Create and manage a station in Podcasts on Mac
You can create stations (previously called playlists in iTunes) with the shows you follow — for example, you might want to group all shows about personal finance into a station. You can play the podcasts in your station in any order, and the stations are automatically updated when new episodes become available.
A station has the station icon 
next to it.
Create and edit a station
In the Podcasts app
on your Mac, choose File > New Station.Type a name for the station, then click Save.
Update any of the following station settings:
Station name: Type a different station name, if you like.
Play: Choose what order the podcasts in the station play in.
Group by Show: Turn on to organise the station by show.
Episodes: Choose which episodes to include in the station.
Media Type: Choose whether to include audio podcasts, video podcasts or both.
Unplayed Only: Turn on to include only episodes you haven’t played yet.
Click Choose Podcasts, choose the shows you want to include in the station or choose Include All Podcasts, then click OK.
Click OK.
The station appears in the Stations section below Library.
To edit the station, click the More button 
in the top-right corner, then choose Settings.
Play a station
In the Podcasts app
on your Mac, click a station in the sidebar.Do one of the following:
Hold the pointer over the episode you want to play, then click the Play button
.Click the More button
in the top-right corner, then choose Play.
Delete a station
In the Podcasts app
on your Mac, click a station in the sidebar.Click the More button
in the top-right corner, then choose Delete Station.To confirm the deletion, click Delete Station.
Stations are synced to any device where you’re signed in with the same Apple ID and syncing is turned on. See Listen to podcasts on all your devices.