RE: Metric Measurements
While this is a very popular subject on Rouxbe (just type in "measurements" and you will see many other threads on this), it is not something that we have planned for the near future. I know, sorry :-( There are however many sites with conversion tools that you might find helpful.
I know that when I went to culinary school they used to mix up all of the measurements on purpose just to train our brains to always be thinking. That way if we travelled or worked somewhere where the measurements were different, we would not be totally lost.
As for putting the measurements at the bottom of the video, which would be for the U.K. Canada, Australia etc., we do not in any way want to distract users from the video as we want the experience to be a clean and distraction free as possible. This is why you never see any ads flying across the screen as you watch our videos.
Hope you understand. Cheers!