I could not find anything like that, so I made my own. I guess they are useful as a demo to novice users.
http://www.translatum.gr/forum/index.php?topic=338239.0
http://www.translatum.gr/forum/index.php?topic=338238.0
Very helpful! Yeah I remember when I first found that out was wow that was awesome.
I was surprised not to find any videos showing that on the web, although for example on youtube there are many video tutorials (http://www.youtube.com/results?search_query=smf+forum&oq=SMF+f&gs_l=youtube.3.0.0l8j0i5l2.243.1029.0.2698.3.3.0.0.0.0.313.584.0j2j0j1.3.0...0.0...1ac.1.7XFRCXExWZk) for SMF.
By the way, I was trying to figure out whether I could change the size of the video on a per post basis using your mod...