Board Thread:General Discussion/@comment-6160623-20130521003307/@comment-188432-20130522202006

The youtube extension, activated with the youtube HTML tag, does work, but of course it's an older MediaWiki extension, and it will make some of your videos look different when unplayed than others. Principally, this means that you don't get the same video "frame" that you do if you just place it on the page with a straight-up call to the file namespace, like:

With a file call, width determines whether the video will play on the page or send you to a lightbox. If the thumb is > 400px (literally, 401px and above), the image will play in place by default. Anything that's 400px or less will send you out to a lightbox.

I don't know if there's some parameter that you can set to force it to play in place, but I do know through testing at w:c:tardis that the "magic" width is 401px.

But maybe this video will have the answer: