Apple really needs to fix this. It is completely nonsensical. When multiple non-standard seasons of a TV show are purchased, the TV app and Mac (haven’t checked but I’d assume Windows as well) iTunes application display all of the episodes in a mixed season with all of the episodes mixed together.
I recently purchased the complete Battlestar Galactica in iTunes but instead of buying the standard seasons 1-4, iTunes had it as a set- the complete Battlestar Galactica Volume 1 and then a separate Volume 2. When I opened the TV app to check it out I was shocked to see all of the episodes mixed together listed like this-
Volume 2, Episode 1
Volume 1, Episode 1
Volume 2, Episode 2
Volume 1, Episode 2
I then went to check if this impacts other TV shows and it does. I also have it with Doctor Who. On top of having regular seasons, Doctor Who also has special episodes that they air every Christmas (and other times) and they sell the specials as individual seasons with various bonus videos for each one. In the TV and iTunes applications all of the episodes and bonus videos from all of the specials are mixed together. I’ll be honest I’m not even exactly sure what the sort method is. It’s not alphabetical and it’s not by release date either. Other shows also that have seasons that don’t use the standard seasons 1, 2, 3… all seem to have this issue.
This presents a pretty big inconvenience in being able to watch TV shows without accidentally watching in the wrong order.