iTunes is Lying
I had a migraine for much of the day, so I barely managed to read the newspaper and pet the cats. I also tried to listen to some Podcasts.
Apple asserts that they can give Podcast publishers information about who listens to their content, various analytics, etc., etc.
Meanwhile, iTunes can not keep track of which Podcasts I have and have not listened to on my phone and on my computer, even though these two devices are both signed in with my AppleID and communicate with each other daily over a USB cable.