From what I found there is no way to add an audio file into Podcast application: as of macOS Catalina, it supports only subscribing to RSS feeds. The only way built-in way to listen to the separate podcast episode is to find it via application search and add it separately.
However, I found out that you can listen to any audio files including MP3 the same ...
My ipod shuffle would not show up in the finder when I plugged it in. Here's a workaround that worked for me:
Open Music App
Click on your iPod shuffle in the sidebar
You should see a Sync Settings button in the upper right
That will open the finder window where you can sync podcasts
I suggest starting over -- that is
1) unsubscribe from all podcasts, and restart all devices. Then,
2) do Settings -> Podcasts -> Sync Podcasts and/or Preferences => Store => Sync Playback as described in the notes below your question. Then,
3) Plug in each device to your computer with iTunes open, select the device as shown in the first image, ...
In order of increasing quality & size: Regular, HD, 1080p.
Normally when a video is referred to as HD. They are talking about
720p. Which is a slightly lower quality compared to 1080p and if they
say FHD (Full HD) they are talking about 1080p. I cant give you the
exact space you need to store the videos since they can vary in
You need to accept the Terms & Conditions for the iTunes Store.
When you attempt to login to http://PodcastsConnect.apple.com with an Apple ID that has not been authorized for use in the iTunes Store, you will get stuck in a loop (and thus, instead of logging into PodcastsConnect, you will be returned back the login screen).
You need to create an account on Apple's podcast management site: itunesconnect.apple.com.
Click the iTunes Connect Add podcast button at the top left of the iTunes Connect dashboard.
Enter your RSS feed into the provided text box and then click the “Validate” button.
A Feed Preview will load if you do not have any validation errors. Please take a ...