This Side of Paradise (TOS).
Star Trek: First Contact.
It's the first time I've seen either of these programs in years. 'This Side of Paradise' is probably one of Spock's best episodes, at least in my opinion.
The cast puts in some good performances, even Sirtis and McFadden who get barely anything to do, in First Contact. The introduction of the Borg queen is still something that I don't like. While I understand the screen writers felt they needed a voice, I think the Borg were more effective when they were monolithic.