In the for Real segment, Harry says the tub in the apartment above flooded. However, in the Closed Captioning, it says the toilet flooded.
Oddly enough, this episode got released on DVD October 26, 2004, before its PBS debut. This isn't the first PBS Kids episode to undergo such treatment.
This is the second appearance of Archimedes.
For Real Clip: Harry's Home Away from Home
Math Topic: Finding a Simpler Case
The Big Idea: If you can spot an easy problem inside a hard one, the simpler solution can help you solve the harder problem.
NCTM Links: Problem Solving