SO this is something I really miss from Kodi.  In kodi, it's possible to go into a tv show, and select "All seasons" all the way at the beginning of the season listings. This would then bring up a playlist comprised of every episode in every season in order.   What I would then use this for, is to "sort by IMDB rating" or "sort by TheTVDB rating" and then scroll through the highest rated episodes of the entire series. A super super useful feature that I used every day.   And one I miss dear