Continuity mistake: The package Steve received from Mailbox is briefly visible before Mailbox comes in. You can also see a crew member's hand holding the package as Steve grabs it.
Visible crew/equipment: As Steve skidoos back home from the present store, a boom mic is visible above his head.
Blue Wants to Play a Game - S1-E12
Other mistake: The jigsaw puzzle Steve and Blue help Shovel and Pail with has a picture of everyone playing musical chairs from the Mailbox's Birthday episode, but Steve suddenly isn't in the puzzle. He played musical chairs, so he should've been in the puzzle.
Blue Wants to Play a Song Game - S1-E14
Revealing mistake: After Blue and Steve play the monkeys jumping on the bed game with the sock monkey, when the mail time song plays Steve gets up excitedly and his arm and hand get cut off.
What Does Blue Want to Make? - S1-E15
Visible crew/equipment: A boom mic is visible when Steve starts singing "We Just Got A Letter."
What Game Does Blue Want to Learn? - S2-E15
Continuity mistake: When Steve and Blue are in the felt frame playing Tic Tac Toe, the X on his shirt is larger but as he skidoos back home, the X is smaller.
Steve Gets the Sniffles - S2-E1
Other mistake: During the mailtime segment, as Mailbox moves closer to Steve, a big chunk of him is cut off. (00:12:50)
Snack Time - S1-E1
Visible crew/equipment: After Steve skidoos into the farm, the boom mic dips into view above his head. (00:15:46)
Snack Time - S1-E1
Revealing mistake: When Steve skidoos to the farm, there is a white border around the screen.
Snack Time - S1-E1
Revealing mistake: When Steve skidoos back to the thinking chair, the tree branch is cut off.
Revealing mistake: The first clue, the boots, are cut off to the left.
What Story Does Blue Want to Play? - S1-E16
Revealing mistake: When Blue wants to play Blue's Clues, the paw print is off-model.
Revealing mistake: In the intro of this episode, a glitch is visible.
What Is Blue Afraid of? - S1-E18
Other mistake: Shovel, Pail, and Steve see a shadow, then figure out it's the shadow of a tree. Then, when the red bird comes and lands on the tree branch, the bird's shadow is reversed, with the tail facing the opposite direction. (00:05:58)
What Is Blue Afraid of? - S1-E18
Other mistake: Steve finds the second clue, which is the shadow of an owl. The owl is on a tree branch, but there is no tree shadow that the branch shadow is attached to. A floating tree branch? (00:06:41)
