The Best TV Shows on Nickelodeon

In a war-torn world of elemental magic, a young boy reawakens to undertake a dangerous mystic quest to fulfill his destiny as the Avatar, and bring peace to the world.

The Teenage Mutant Ninja Turtles are back in an all-new animated series on Nickelodeon! Surfacing topside for the first time on their fifteenth birthday, the titular turtles, Leonardo, Michelangelo, Raphael and Donatello, find that life out of the sewers isn't exactly what they thought it would be. Now the turtles must work together as a team to take on new enemies that arise to take over New York City.

When 13-year-old Henry Hart lands a job as Danger, the sidekick-in-training to superhero Captain Man, he must learn to navigate a double life balancing the challenges of 8th grade with the crazy adventures of a real-life crime fighter!

Aspiring singer Tori Vega navigates life while attending a performing arts high school called Hollywood Arts.

Avatar Korra, a headstrong, rebellious, feisty young woman who continually challenges and breaks with tradition, is on her quest to become a fully realized Avatar. In this story, the Avatar struggles to find balance within herself.

The daily life of Arnold--a fourth-grader with a wild imagination, street smarts and a head shaped like a football.

In a magical universe, witches, warriors begin fighting in the name of good .vs. evil! At a magic school, five teenage girls are selected to defend the universe with their magic.

Watch Carly, Sam, and Freddie, as they try to balance their everyday 8th grade lives with their newfound fame managing and starring in the most awesome show on the web.

Meet The Thundermans, a typical suburban family that happens to have astounding superpowers. At the center of the action are the 14-year-old Thunderman twins, who share the same bathroom, the same school, and the same annoying little siblings. Their only difference? The sister is a super student with a super sunny disposition who super looks forward to being a superhero someday, and her twin brother is a super villain.

Welcome to the Loud House, where life can get pretty crazy. One boy, TEN girls?! Lincoln Loud wouldn’t change it for the world!

Focuses on a group of toddlers, most prominently Tommy, Chuckie, Phil, Lil, and Angelica, and their day-to-day lives, usually involving common life experiences that become adventures in the babies' imaginations. Adults in the series are almost always unaware of what the children are up to; however, this only provides more room for the babies to explore and discover their surroundings.

Ren and Stimpy are a mismatch made in animation heaven with nothing in common but a life-long friendship and an incredible knack for getting into trouble. Join them in their bizarre and gross world for some outlandish situations coupled with hilarious jokes.

The zany, fast-paced adventures of a 10-year-old boy and his fairy godparents, who inadvertently create havoc as they grant wishes for their pint-sized charge.

Jimmy Neutron is the smartest kid in town. As a genius, Jimmy thinks most things can be solved with the invention of a new gizmo. But Jimmy usually takes the easy way out, and his backfiring gadgets result in comedic adventures.

The Penguins of Madagascar is an American CGI animated television series airing on Nickelodeon. It stars nine characters from the DreamWorks Animation animated film Madagascar: The penguins Skipper, Kowalski, Private, and Rico; the lemurs King Julien, Maurice, and Mort; and Mason and Phil the chimpanzees. Characters new to the series include Marlene the otter and a zookeeper named Alice. It is the first Nicktoon produced with DreamWorks Animation. A pilot episode, "Gone in a Flash", aired as part of "Superstuffed Nicktoons Weekend" on November 29, 2008, and The Penguins of Madagascar became a regular series on March 28, 2009. The series premiere drew 6.1 million viewers, setting a new record as the most-watched premiere. Although the series occasionally alludes to the rest of the franchise, The Penguins of Madagascar does not take place at a precise time within it. McGrath, who is also the co-creator of the film characters, has said that the series takes place "not specifically before or after the movie, I just wanted them all back at the zoo. I think of it as taking place in a parallel universe."

AJ is an 8-year-old techie who drives monster-truck Blaze, the top racer in Axle City. The two go on adventures that have them taking on problems involving science and math. Many predicaments they face are caused by Blaze's rival, Crusher, a tractor-trailer that will do anything to beat other vehicles to the finish line. The animated series is billed as the first TV show for preschoolers to comprehensively cover areas of science, technology, engineering and math. Each episode introduces different STEM concepts, including buoyancy and trajectory.

Doug Funnie experiences common predicaments while attending school in his new hometown of Bluffington, Virginia.

The life and times of a cat and a dog with a unique twist: they're connected, literally. They share one body with a Dog's head at one end and Cat's head on the other. Adding to their dilemma is Cat's annoyance with Dog, mainly caused by Dog's stupidity and Cat's up-tight personality. Characters: Cat - Cat is the smarter one of the two brothers, and is always hatching some kind of plot to get his brother to calm down, so that Cat doesn't get beat around and hurt. Even though most of these plots involve messing with Dog's feeble mind, they often backfire on Cat, much to his dismay. It may not show all the time but, he deeply loves, and cares for his brother Dog. Dog - Dog is the more lovable of the two brothers, Dog loves to play and party and play some more, he loves baseball and playing fetch with frisbees, balls, sticks, etc, He is very friendly, and happy, but does have a breaking point. He's very sensitive, and if he fails at something he feels horrible, and worthless

Marshall, Rocky, Rubble, Zuma and Skye are doing their best to protect the people of their town. Led by Ryder, a tech-savvy 10-year-old boy, each of them is equipped with special equipment and together they help anyone who finds themselves in trouble. No task is too big for them and no puppy is too small.

A young girl named Dora goes on adventures with her red boot-wearing monkey named Boots.