Star Wars: Rebels
I'm so sad this show ended. Truly one of the greatest pieces of Star Wars media, just as great as the much venerated The Clone Wars series, except while its prequel-set predecessor got 6 initially and finally 7 seasons, (plus the Bad Batch spinoff, a movie, and a couple spinoff specials), Rebels was abruptly cancelled after only four seasons, and even then the first season was a little too childish while the show was still finding its footing, so really it feels more like we only got three proper seasons.
It did so much right, capturing not just the feel, not just the writing and performances, but even down to the subtleties of re-capturing the way the special effects like the lightsabers and explosions looked like in the Original Trilogy. It adds so much new to the OT era mythos, and it honors the best characters of the Clone Wars show, incorporating those ideas to make the transition between trilogies more seamless.
They gave us our first look at Grand Admiral Thrawn, a famous figure from the EU, in an official series, and they basically captured his character perfectly, which almost never happens. Usually when you read a book, the way you imagine the character in your head is inevitably different from what an actor in the movie version does chooses to play him as. Not so in Rebels. It's picture perfect, exactly the way I remember Thrawn being in the book. Cunning, fearless, and creator of perfect strategy that thwarts the best laid plans of Rebels and Jedi. His appreciation for arts and the culture of the indigenous peoples he encounters gives him a unique insight into their military methods which most other Imperials would overlook. Brilliant.
There's just so many good stories, the main cast you feel for just as strongly as for the original team of Luke, Leia, Han, and Chewie. Even the family pet astromech "Chopper" is given so much personality and character with just boops and beeps, and hand motions, and he's a very distinct character from say R2D2.
The show was at its peak, and was Star Wars itself at its peak when it ended abruptly. Dave Filoni seems content with the way it ended, with no plans to revisit it. There is a new Ashoka live action show that's supposed to pick up where Rebels left off, but not really, since a) it time jumps from before Ep. IV to after Ep VI, b) it is live action so obviously they will re-cast all the characters whose voices you're attached to and c) live action SW has never been as good as animated SW. I will have to give it a shot, but I'm going in with a grain of salt, especially since the trailers left much to be desired. Ashoka herself was a wonderful, beloved character, but I think her story is just done. I don't really need to see more of her, or Thrawn for that matter. I did want to see more of the Rebels team taking on other classic characters and ideas from the EU that have yet to see a return.