
Hessa:
Seasons sometimes have different actors, directors, or screenwriters. So, adding seasons too would be a little problematic. We need different pages for seasons.
While I understand what you're saying and the difficulties, and acknowledge this will probably not happen, I think for seasons of the same title, it would be better merged with different tabs in casting for each season. This is basically just my personal preference, haha.
I do think having a "series" page is a good idea though - a place that consolidates all the entries of a series (dramas of more than one season or anthology series like HIStory) based on aired date and you can navigate from it to all the entries. What do you think?