In honor of the groundbreaking tv series' 44th anniversary, Buzzfeed ran "10 Best Star Trek Episodes," a compilation of snippets and links to full shows. Here's a bit from "The Trouble With Tribbles," a race known for their bunny-like breeding and hatred of Klingons.
If you are on your way to becoming a full-scale Trekkie, you'll want to get a hold of Star Trek: The Motion Pictures DVD Collection, and also take advantage of our $5 off $50 promotion.
If that doesn't satisfy your ST jones, here a link to a website that has all the tv episodes! That's right, Original, Next Generation, Deep Space Nine, Voyager, and Enterprise. Live long and prosper!