It just crossed my mind that a video section might be handy...This would definitely become sort of confusing with two different video sections but it would make discussion a lot easier.(so we wouldn't have any "^^^^^^^^^^ no your wrong" in the video comment section)
Or maybe not even make a whole Forum section, but just put a link on the original video page that brings you to a discussion page or something, so it isn't two separate videos, just a side page for discussion.
I'm not saying do it do it do it. but maybe it will spark some ideas and come up with a better less confusing way.