Based on the Rugrats episode where the main characters, Susie and Angelica, go to school together with other students including Harold, who made some apperances on Rugrats and All Grown Up. Like All Grown Up , they have episodes that feature friendship and many other ideas all in kindergarten. As time flied, the new Nickelodeon show was supposed to be on during September 2005, but didn't make it by the days of the month. However, there should be an apperance of the show sooner in the future.
However it was aired on a Rugrats special which was only on Tales From The Crib : Snow White. There were 3 episodes aired but the rest are unknown.