Quick tutorial on how to embed videos in OPs. I'm going to use Youtube as a basis, because thats where most folks get their videos. Everything I write will double with how to embed in comments EXCEPT where noted:
Step 1: Find video (I'm using http://www.youtube.com/watch?v=vLOtDB1SzSA because Brian hasn't put "Brady Quinn for Heisman" back on Youtube)
Step 2: Click Youtube link that says "Share"
Step 3: Click "Embed"
Step 4A FOR OPs: Click check box that says "use old Embed Code"
Step 4B: Copy Embed Code
******Note: for Embedding videos in the comments you do NOT need to use the Old Embed Code******
Step 5: Click "Switch to plain text editor" here on MGoBlog
Step 6: Paste in Embed Code
Step 7: Switch Back to "Rich Text Editor" and see the box for your video (h/t Blazefire)
FOR OPs: Make sure the box that pops up on the screen says "FLASH" and not "IFRAME". "IFRAME" is the newer embed code and won't work in the OP. Both "IFRAME" and "FLASH" videos will work in the comments.
Step 8: Enjoy your embedded OP Video