Watch-This is the first season of the series.
Watch-This shows what happened to Kino after fleeing their hometown.
Optional-This is a short sidestory
Watch-This is technically a remake, but it still covers a lot of stories that the original did not.
Episodes 2, 10, and 11 were covered in the orginal so it's okay to skip those ones.
Skip-It's just a picture drama. It does not add to the story.