Moon Girl and Devil Dinosaur, on Disney Channel
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Caution: spoilers.

Season One
This is based on comic books I've never read, and probably had never heard of until this show was announced. It's about a 13-year-old genius named Lunella Lafayette, who lives with her parents, Adria and James Jr., and grandparents, Miriam (aka Mimi) and James Sr. (aka Pops), in New York City's Lower East Side (LES), where they own a roller rink. One day, Lunella finds the schematics for a generator, left behind by a scientist called Moon Girl, who had disappeared years ago. She builds the generator, which turns out to create portals. When one opens, a red T-rex comes through, and quickly bonds with Lunella. She names him Devil Dinosaur; he communicates in grunts, but they understand each other, somehow. She also befriends a classmate and media influencer named Casey Calderon. And she makes a bunch of gadgets for herself to fight crime, along with Devil, taking on the name Moon Girl for herself. Casey begins managing Moon Girl's social media, and is the only one who knows her secret identity. In one episode, Moon Girl meets a cosmic trickster called the Beyonder, who causes all sorts of trouble, and could put an end to humanity if he chose to. Moon Girl convinces him not to, but he shows up occasionally after that, always causing some sort of mischief. (Before his introduction as a proper character, he was a narrator for the show.) In the two-part season finale, Lunella learns the identity of the original Moon Girl (which I had guessed at least a couple episodes earlier). They work together to fight an enemy named Maris Morlak. They manage to foil his plans, but Moon Girl ends up stuck in another dimension.

The show has lots of cool music, cool animation, some fun humor, and good characters and relationships. And I don't know what else to say for now, but I look forward to watching season 2.