Provide a way to embed videos in answers
Is it possible to add a video in the answers on Stack Overflow?
I think I saw this in some answers a few months ago, but how do they do it?
Do I need an special tag?
No, you cannot embed videos in posts.
You can link to YouTube video pages if you wish. Though I urge you to consider if such a link is really necessary. We like to keep answers on SO as self-contained as possible.