In the Blue's Clues episodes with Blue's Room segments, Blue has entered her room through a magical lock. We do not see the lock in this show.
Coincidentally, both Blue's Clues and Blue's Room have had the same theme for their opening episode-- snacktime.
Polka Dots Puzzles is played differently here than when it was introduced in the Blue's Clues episode "Joe's Clues."
First episode to take place entirely in Blue's Room.
Introduction of Dictionary.