A new media embedding service is now part of the forums.
From now on, any media URL you put in a post, should automatically parse and display the media such as youtube, Vimeo, twitter, hudl etc.
Here is a list of media that can now be parsed in forum posts.
If for some reason the URL alone isn't working, try utilizing the new bbcode button that looks like a computer monitor, which will put the media bbcode into the post. Paste your url within that bbcode and you should be set.