12:01:24 AM Mar 23rd 2012
This was linked to in the "Chained to a railway" trope but I can't add it because I don't know the episode.
03:45:48 PM Apr 16th 2012
That's from the second episode of "The Phoenix Saga", "The Dark Shroud". Though it's just an illusion created by evil!Xavier. (http://www.youtube.com/watch?v=jVko1jXdIfI)