Space Seed introduces Kahn. City on the Edge of Forever is unanimously the best. Amok time is crucial, I'd just watch tos stsr to finish a d be patient cause otherwise you'd miss out on amazing crap like shore leave. I would stop ds9 to watch the tos movies though. The tos movies rule.
I've seen Trouble with Tribbles and that one episode where the crew splits into good and evil counterparts
Space Seed introduces Kahn. City on the Edge of Forever is unanimously the best. Amok time is crucial, I'd just watch tos stsr to finish a d be patient cause otherwise you'd miss out on amazing crap like shore leave. I would stop ds9 to watch the tos movies though. The tos movies rule.