I should address the topic of Anno quitting directing in the middle of Nadia. After episode 22 of the series there is a dip in the writing quality, tone and overall quality. It fortunately recovers in the last five episodes. My theory is that the series was originally intended to be 26 episodes long, but it was unwisely stretched out to 39 episodes. Even with that weak stretch in quality I am buying a BD copy of it because it is a good show overall and a good resource for fans of older anime and Evangelion.