Just an FYI after I copied the Bevel Modifier to the Speakers from the Console I could not get the Bevel Weight to work (at 4:09 on video). After toying around and even restarting the exercise from the beginning I was still stumped but finally got it to work after going into Object Mode on the Speakers and pressing Ctrl+A and 'Apply All Transforms' then going back into edit mode it worked. Just in case anyone else gets frustrated. ;) In the end we ended up deleting the face anyways to add holes for the speakers, so it is kind of a moot point, but I didn't want anyone else pulling their hair out like I did so I decided to post this work around.
Hi Mike,
Never do that (Applying All Transforms) again! (You got lucky here, because your model was not Rotated or Translated.)
The rules for Meshes are:
Always (and this is very important) Apply the Scale.
Don't Apply the Rotation, unless you absolutely have to.
And never Apply the Location.
You might eventually run into a situation, where you may break one of those rules, but that is pretty rare.