Please ignore this. NOT A BUG. But I can't seem to delete the entire thread.
I was confused because when I went to the bottom of a long running series and it said it was truncated and told me to visit the Seasons pages, I expected to see the list of episodes on that Season's page when I saw it. e.g. https://www.tvmaze.com/seasons/3118/doctor-who-season-3 After posting this as a "bug", I just saw that there's a link at the top of that page to get to that seasons' episodes.