The series of videos from Scott & Nate Wadsworth,
aka "Essential Craftsman" with several featuring Cy Swan,
are good example of some of the best YouTube has to offer:
great content for makers and DIY folks,
well produced, well shot and edited,
and they have very little extraneous framing - don't start
them with the sound muted, because whatever they are talking about
starts right at the top. That they (probably Nate)
time-lapse/fast-forward through most anything repetitive
shows just how to save the viewers' time while still showing
the work.