This post is an example:
and it taken from some of this post on the Playstation blog:
The YouTube video isnt' copied across, though it didn't do so on TinyMCE so I expected that. You'll notice though that the titles Playstation Plus, PS3 games etc have lost both their font format and colouring.
I'm not sure if this is a but or as designed. I'm less worried about losing the font formatting but ideally I would like the colour formatting retained.