Audiences have been treated to many wonderful Nickelodeon shows, but it is concerning that some have been disregarded. Some shows have come and gone over the years, becoming popular, while others have been discontinued. Renowned Nickelodeon cartoons such as SpongeBob, Fairly OddParents, and Avatar: The Last Airbender have gained recognition. However, some programs that are just as entertaining and have excellent content as the ones described above are often disregarded. Thus, after viewing these underappreciated Nickelodeon series, viewers will be gripped to the very last minute.