Just a warning, and I'll preface this by saying that I'm passing on what I've heard from other developers -- albeit very experienced ones who's opinions I trust -- rather than my own experience, but...
From what I've heard, although TheNewBoston is pretty good at the teaching part of things and is very prolific, he apparently encourages some bad practices and sometimes provides incorrect information.
While I wouldn't go so far as to actively discourage watching the videos if you find them helpful, just take the material with a grain of salt and be sure to supplement your learning with other sources so that any misinformation is corrected.
His tutorials have also been discussed a number of times previously, so if you search our forums you should find further discussion/ more information.
Hope that helps!