Nickelodeon Miranda Cosgrove’s friendship helped Jennette McCurdy during difficult times 2 years ago Jennette McCurdy developed her nerve racking experience as a kid star in a new appearance on "Red Table Talk." McCurdy… Nickelodeon Declares Avatar Studios, Devoted to Extend The Legend of Korra, Last Airbender universe 4 years ago The Avatar universe is expanding. They reports that dearest kids' organization Nickelodeon is dispatching a recently shaped division, Avatar Studios,…