Three-Part YouTube documentary of the PBS Documentary "Do You Speak American".
From the PBS website: "Why is the English spoken by Maine lobstermen so different from that spoken by cowboys in Texas?
Does Spanish pose a threat to English as the dominant language in America? And what on earth do yins, wickety wack, ayuh, catty whompus, and stomping it clean mean? Robert MacNeil travels cross-country to answer these questions and examine the dynamic state of American English - a language rich with regional variety, strong global impact and cultural controversy." (http://www.pbs.org/speak/about/)