Originally announced to premiere on July 20, 2006.
It is revealed that a working title for the show was Blue Prints and even that only came along after it was decided that Blue should be a female dog instead of a male cat and Steve was young. Clips of the pilot can be seen.
The show was originally going to have a female host but Steve landed the audition. His appearance which is similar to that of a skate rat was seemed non family friendly so they called him to ask if he can change his look.
Mr. Salt, voiced by one of the composers Nick Balaban, was originally given a Brooklyn accent instead of being French.
Blue was originally going to be called Mr. Orange before deciding to be a blue cat, later a blue dog.
The real reason for Steve's departure was because he didn't want to make a career on children's television and that he didn't want to lose his hair for a kids' television show since the network wants him to have the same look in the show.
Donovan Patton landed the audition at the age of 24 but he had no idea what Blue's Clues was, thinking it was about the blues and picturing Blue with a soul patch and a saxophone.
Clips from the UK version of Blue's Clues and the Korean version can be found.
Because they ran out of money, the staff provided several voices for the animated casts. Co-creator Traci Paige Johnson played Blue because out of her staff, she can bark more like a dog. Music composers Nick Balaban and Michael Rubin later became Mr. Salt and Mailbox.
All of the animation sequences were done in blue screen.
Celebrity Gilbert Gottfried made an appearance in an audition for the show complaining about the techniques for blue screen.
This episode uses the new Nick Jr Productions logo from 2005 with a copyright notice.
Clips of Steve and Joe can be seen during Steve's Mailtime rap.