Blue's Clues first aired in 1996. The first host who played in the Blue's Clues playhouse was Steve. The song from Blues Clues is catchy, and very easy for toddlers and preschoolers to remember.
The show has also come up with cute names for the pets on the show so the children can remember the names of their colors. There is Orange Kitty, Purple Kangaroo, Green Puppy just to name a few. This follows the theme of the show Blue's Clues.