Rosie O'Donnell's birthday wish to Blue in the Mailtime segment was cut from the VHS release of this episode. (edit) "Blue's Birthday" is available on the video of the same name. The video contains bonus segments that can not be seen on television. The episode is also available on the DVD "Blue's Biggest Stories." (edit) Close-captioning for Blue's barking throughout the episode reads things like "bowwow," which isn't normal practice. Normally, it just says "(Blue barking)" or something to that effect. (edit) Assuming that the candles on Blue's cake mean anything, she is eight years old. (edit) This episode introduces Blue's pet turtle, Turquoise, who will appear in many future episodes. (edit) This is the first time the program has featured celebrity guests, but they will appear many times in the future, either as themselves, or as character voices. (edit) Instead of a normal credits sequence, the credits are shown in the birthday banner at the end of the episode as the "So Long Song" is being sung. Gloria Estefan, Tia & Tamyra Howry, Michelle Trachtenberg, Amanda Bynes and Rosie O'Donnell all receive a "Special Thanks" credit for their appearances in the Mailtime segment. Angela Santomero is credited as Angela C. Santomero. (edit) Original broadcast was shown in primetime. (edit) Mailtime Segment: Mailbox pops in just in time for Musical Chairs, his favorite party game. More importantly, though, he has a special birthday card for Blue. In the card, Gloria Estefan performs a special birthday song for Blue and Blue also receives birthday wishes from several celebrities. (edit)

Rosie O'Donnell: Happy birthday to the smartest puppy I know. (edit) Steve: (singing) Let's skiddoo, don't tell Blue. (edit)

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