No, just Season 01. No year.
You can add it, if you want that for yourself. But it doesn’t play a role for Plex. So it should be like Season 01 [1991]
(content inbetween the first pair of square brackets is ignored by Plex)
I recommend using always a 2-digit season number, except when there are more than 99 seasons in total. (That’s pretty rare)
The same applies ot the episode numbers.
