An Animated Series Sample. “Star Trek: Lower Decks” becomes the second animated series in the Trek franchise. So let’s look at the first! “Star Trek” The Animated Series lasted two seasons (or a season and half...). The trio share their reflections on the last two episodes of TAS, “How Sharper Than a Serpant’s Tooth” and “The Counter-Clock Incident.” How did this ‘70s cartoon set the stage for 2020’s Trek cartoon?