Thank you, Steve Burns for cluing us in on what happened when you left "Blues Clues." The original host of the popular 1990s Nickelodeon series appears in a video posted Tuesday to the Nick Jr. verified Twitter account. In honor of the show's 25th anniversary, Burns talks about his decision to abruptly depart the show in 2002, which left many viewers upset. Wearing the shirt and hat he sported as host, Burns explained that he left to attend college. Burns said school "was really challenging by the way, but great because I got to use my mind and take a step at a time and now I literally am doing many of the things that I wanted to do."