Sugestions : Video lessons at higher RES

Hi Bubble Team,
as a suggestion, Would it be possible to have the video lessons: published at a larger size ?
I can only watch them at a medium size, the frame arround occupies most part of the Webpage…
A letter size Horizontal or 2 letter size Vert would be better on larger screen

Also why not posting them on Youtube that offer 480, 720 or 1080 ?
I usualy choose 720 for full screen displaying and its fair enough to see all details (text readable, etc)