copy the link to the YouTube video and then press the (https://www.friendsoffulham.com/forum/Themes/default/images/bbc/youtube.gif) icon, for a vimeo video select the (https://www.friendsoffulham.com/forum/Themes/default/images/bbc/vimeo.gif) icon
you'll see this...
[you tube][/youtube]
paste your copied link in-between the YouTube brackets...
[you tube]https://www.youtube.com/watch?v=jVLNB3d-2cA[/youtube]
and you should see this...