I will be taking the video "8-BIT WORLD" by Yourfavoritemartian as an example for this tutorial.
1. Go to your Youtube video of choice
2. Hit the "Share" button at the bottom of the video, then click on "Embed"
3. Copy the code that shows up, for example:
<iframe width="560" height="315" src="http://www.youtube.com/embed/SAJKwRogzfc?hd=1" frameborder="0" allowfullscreen></iframe></!> 4. On the K!PTeam forums, paste the code you just copied into a new message.
5. Make sure to always check the "Message is in HTML Format" when adding video to your comment, or it won't show up!
6. Post the message and you're done