1. Log in as admin in your wordpress based squat.net website.
2. Go to the Plugins section.
3. Activate the smart youtube pro plugin if it is not already active.
4. Create or edit a post, and insert a http://youtube.com based video weblink.
5. Do not make it a clickable weblink (with the weblink or link button), but change http:// into httpv://
   See example screenshot : https://help.squat.net//smart-youtube-plugin-usage/example-httpV-video-link.png
6. Save your post, or use the preview option.

More information about this plugin : http://wordpress.org/extend/plugins/smart-youtube

Note : This plugin also offers a widget to use in your side-bar and supports other video websites than just youtube.com.