As with most TV series you get statements with out support. So I tracked down the Richard Shenkiman book to get some background to the statements about American myths. I was not disappointed. It is as if he was reading this book on the TV with more graphic representations for the different media.
The book is worth reading. However the format may not be to some peoples liking as it is short choppy statements and the chapters are divided into subjects as, Discoverers and Inventors, Presidents, Sex, and Art.
There is a fair set of footnotes to lead you to further reading. You may need this as he sometimes stretches a point.
Final analysis, you are better off reading this to give a better perspective on reality. Read it to your kids and save them a lifetime of "Legends, Lies & Cherished Myths of American History".