This is a British television series (ITV) on the history of the English presented by Melvyn Bragg. There is an excellent a companion book, also written by Bragg. The series ran in 2003.
The series and the book are cast as an adventure story, or the biography of English as if it were a living being, covering the history of the language from its modest beginnings around 500 AD as a minor Germanic dialect to its rise as a truly established global language.
In this episode, we explore how English in America became a new and rich language that went far beyond the English of the British Isles.