TOS #9: Dagger of the Mind

Second episode in a row with a crazy doctor run amok, but this one is a possible precursor to the "There are Four Lights" TNG episode.

This episode has a little Zach-in-the-box action...

...But is really a fascinating exploration of psychotherapy. All the "rehabilitated" people that I saw kept reminding me of the post-treatment scenes in "A Clockwork Orange."

Kirk: "One of the advantages of being a Captain, Doctor, is being able to ask for advice without necessarily having to take it."

Then the dude tries to use the neuralizer to erase Kirk's mind. Naturally, he is unsuccessful.

TOS #7: What Are Little Girls Made Of?

I think this is the first episode in which undergroud survivial caves are mentioned, in yet another connection to ST2. Also, this episode has a barren ice-world -- just like ST6.

I love, in this episode, how Kirk trusts Dr. Corby only until he beams down and doesn't see him, at which point he immediately disregards the Doctor's request and calls for backup. He is, of course, correct to be suspicious, because this dude is lurking:

He's a neo-sapien android with Asimov robot programming. Also a precursor to Data, his name is "Ruk."

This is definitely the hottest girl so far in the series. And her name is... Andrea! Sadly, she is also an android.