Video embed codes seem to be properly broken. Though my guess is rather that we're at capacity with data, as there's just a blank where videos should be, and from what I've seen, some... still work.
A techie will have to look into it, I've only got what my own experimentation and regularity has afforded me. This has been an issue since about april?
I'm gonna laugh my ass off if my zeal for embedding videos put us over capacity. Until the issue is resolved, I'll resort to providing links.
Edit: Upon further investigation, it seems all video embeds have been destroyed, though the original posts can be edited and the embed code still found, all it does is show nothing.
In other words, for once something isn't my fault! xD