Being British I'm terribly offended by this show, it shows us in a bad light and is full of historical inaccuracies. It should be taken off the air and I'm considering filing a class action law suit against PBS and it's sponsors for all of the racism and nervous shock it causes me! No only kidding! I saw this show recently and not only is it an excellent children's TV show but they could do allot worse by allowing high school students to see this -- it should be on the curriculum. I think that a cartoon might hold the attention span of the students longer than a documentary or a history lecture.
Having said all that PBS is taking some risks here with this show. It actually shows the Americans in a good light which what I know about PBS is unusual. I'm sure this as far as they would go, because they would never dare show a cartoon series of the Mexican-American war, Custers last stand, the Alamo, the gold rush or even W.W.II in such a noble way without creating outrage from disgruntled Spanish-speaking Americans, native Americans as well Asian Americans(not to mention law suits).
It seems that we Brits are still fair game in the eyes of PBS. If PBS want's to continue receiving vast amount of cash from it's sponsors and pledge money from willing viewers keep an eye out for "civil war kids" and "slavery kids" some time in the future