This is a list page for episodes from the fourth season of Blue's Clues. 22 episodes were aired during season four's run. (April 9, 2001-April 29, 2002). The season finale introduce Joe and had Steve leave the show. However, two episodes that were produced in this season ("Blue's School" and "Something To Do Blue") did not air on television until August 1, 2006 and were released on video on January 27, 2004.