The Daka Shoe Company building used in the B-rolls is actually the Seattle Central Library.
At the beginning, Freddie says they hit the most viewers with a total of 355,000; but in episode 8 "iSpy a Mean Teacher", when Mrs. Briggs is on the show they have the biggest viewers of 550,000 it is likely the show got more viewers at the time of iSpy a Mean Teacher.
Working title: "iGot a Sponsor."