For example, to insert the video http://www.youtube.com/watch?v=n9h34xYsRrI into your post, find the video on youtube (just click the link to see this one). Make a note of the video id from either the address bar (it is the bit after ?v=) or if you click the share button, the bit after the last forward slash (/) in the youtu.be link. You will also need the width and height for the video, which you can get by clicking the Embed button which is displayed after clicking Share. At two points in the HTML display you will see width= and height= - you just need the numbers. The code for the example video looks like this:
Quick update - whilst I was fixing tapatalk to display our custom BBCode tags, I found that they already support a simpler youtube tag than the one I had created, so I have now added a new tag that does not need the width and height to be specified, which is hopefully simpler to use. Tapatalk already supports this tag, and with my fix yesterday is now supports our one with width and height as well, so you can use these and they will render in either the normal forum or on Tapatalk.
Arctic Silver '99 Z3 1.9 & Black '59 Frogeye 1275cc