That's totally and completely unnecessary.So Parker is like Joi and Junsa in that all their relatives look the same. The Parker from this episode is the cousin of the Parker in the previous episode.
It's kind of weird that Iris would liken Parker to Joi and Junsa and not, say, Don George since the latter is a character exclusive to Best Wishes!. Don't be so quick to be done with this generation, guys!
Those exterior shots of the boat had some really crappy CGI.
The mystery was a bit easy to solve, but then again this *is* a show aimed for preschool / elementary school kids. Like most of these types of things, however, it required quite a bit of just random guessing on the detective's part. That water on the floor could have come from anywhere, Dent; you had absolutely no reason to jump to the conclusion that it came from Vanipetit making a key out of ice.
Can't it just be the same guy?