Firefly

The Expanse. The show had a satisfying ending but the books went a bit further into the future and I'd like to see more in the shows.

Deadwood. The movie was too little way too late.

Expanse, of course

firelfy

Firefly

Game of thrones, but it’s the new series 7 and it rewrites original 7 and 8 and they don’t exist anymore.

Dead Like Me

Fringe

Altered Carbon! season 2 was left open ended because it was supposed to get a 3rd season.

Santa Clarita Diet

Raised By Wolves

Adventure Time. It really needed one more season to fully flesh out the storylines they set up. Cartoon Network really screwed them (and other shows like SU) over

Stargate Universe! The way it ended was so unfair and yet the perfect setup for something new. There’s been rumors brewing for years and years at this point but nothing concrete has happened yet.

People have already beaten me to Firefly over and over again so I'll add one likely to have been forgotten:

Carnivale.

Ended on an unbelievable cliffhanger, left SO MUCH unanswered, could've run for another decade. I'm re-mad that this show got canceled now.

My Name is Earl

Better off Ted

Pushing Daisies

ETA: I should've finished reading this thread. Of course these two would be mentioned!

Dirk Gently, the BBC America/Netflix one.

First season, phenomenal! Second season was pretty good, not as good as the first but still good. It set up a lot of things that were then not continued and I just want to know what they had planned.

Also Snowpiercer: You've filmed it, you've edited it, just let us see it!

(Edit: posted this as a reply to someone else. My bad!)

Pushing Daisies never got the ending it deserved. Everything had to be hastily wrapped up in one entire episode, third season setups were just left as loose ends, and it really didn't do such a great show justice

Unironically Mindhunter. I'm so mad it's been canceled. Such a great show.

Prodigy (Star Trek) just got canceled, that's on my mind right now. They had a lot of story left to tell.

Live action Cowboy Bebop. Loved that show, idc what people said.

Raised by Wolves, and Colony.