Kids’ TV is a big business, and there’s no bigger player in the game than Nickelodeon, the channel that introduced us to iconic shows like All That, SpongeBob SquarePants, and Hey Arnold!, and stars that transcended the genre, including Kenan Thompson, Ariana Grande, and Nick Cannon. What made Nickelodeon special was its refusal to pander; the channel never shied away from layered characters, complex social issues, or mature wit, which it delivered alongside laugh-a-minute entertainment. The shows on this list blazed the trail for Nickelodeon's current programming and set the tone for kids’ entertainment in the 21st century.

Time to get nostalgic and look back at some of the best old Nickelodeon cartoons and shows.

Also Watch