How to view podcasts older than one month in macOS Podcasts app?

I haven't opened the macOS Podcasts app for some time and need to view all episodes from my selected shows dating back three and a half months, but apart from the older episodes that I downloaded, my feed only goes back one month. I have not set any restrictions on my shows and when I look up the official websites of the shows, I cannot download the episodes to my mac.

How to view podcasts older than one month in macOS Podcasts app?