Couple of still shots from the 720p DASH formats.
mpv (built on top of ffmpeg-dev) works fine for me.
Edit: I do wonder how much more processing power/wattage is required to make the VP9 version, and how much better the AVC clip would look if given the same freedoms (though I've long since assumed Youtube switch to hybrid or fixed-function AVC coders for speed and lower electricity bills... because they
obviously aren't concerned about quality...).