Blue's Clues is an interactive educational children's television series. It premiered on Nickelodeon through the Nick Jr. block on September 8, 1996, and concluded its run on August 6, 2006. The show follows an animated blue-spotted dog named Blue as she leaves a trail of clues/paw prints for the host and the viewers to figure out her plans for the day. It became the highest-rated show for preschoolers on American commercial television.