Numberjacks is one of those shows that you watch and think to yourself, "Hmmm, do I like it legitimately or ironically?" On the plus side, it's full of educational content about maths for the kids and it's a little creative by having it be a mix of both CG and live action. The characters are forgettable at best, but the villains (or "meanies" as they are in the show) are definitely the best and worst parts of the show. There were 5 villains, all who had different motives.The was the Problem Blob, a large green... well, blob that spits slime on things to make them grow or just mess them up essentially. The Shape Japer is a purple sphere with 8-bit eyes and mouth that can change shape at will. She replaces things with herself if I remember correctly. There's the Puzzler, who is a (animated and cartoon-y) floating head with bubbles as hair and a beard. What he does is trap the Numberjacks in orange bubbles from his mouth and wouldn't let them out until the Numberjacks solved a puzzle. The Number Taker is a man dressed all in white with a vacuum instead of a left arm and what he does is suck up all the numbers he can find. And, probably the most terrifying villain in my opinion, Spooky Spoon. She is a flying pink spoon that steals cutlery. That's it, but her overall design along with the bad CG animation makes it all the more creepier. Overall, the show is an educational mess of uncanny animation and villains. But, it's not that bad. Maybe protect your kids until they're old enough to know that the villains aren't real, so that they don't get too scared.