Under the old design, when reviewing an episode, the episode title used to be shown in the title bar of the window.
Since the redesign, the Episode Title does not appear in the title bar anymore.
I consider this a glitch because, looking at the source, it looks like it was supposed to be there:
< TITLE > Supernatural: - TV.com < / TITLE >
There are two spaces between ":" and "-"; the episode title was supposed to be between this two spaces (I have put more spaces inside the tags to avoid a bug in the message editor).