To add a youtube video to one of your posts first either start a new thread or click reply to an existing thread.

Then find the video you wish to add on youtube. To the right of the youtube video will be two boxes one with the title 'URL' the other with the title 'embed'. Click the URL box to highlight the text and copy it.

Then head back to your post on this forum and click the 'youtube' button you see under the subject box. You will then see this [youtube][/youtube].

You need to paste the URL you copied earlier between the two tags like this [youtube] paste your URL here [/youtube]

then preview to check it works and submit your post. Job done!!