OS X V10.7 Lion :: ITunes Not Showing Content That AppleTV Shows?

I have a very large iTunes library, with content spread over multiple volumes.  Recently, I would add, say, a movie to the iTunes library.  I don't have iTunes set to copy content into the library, so it stays where it is. Now, the item looks like it got added.  If, within iTunes, I'm in the "Movies" library, and I search for the movie I just added, it isn't there.  I do a search for it, and it isn't there.  However, all the AppleTVs connected to the library show that it is there, and I can play it. 

So, clearly the item has made it into the library, otherwise it wouldn't be streamed to the connected AppleTVs, (and iPhones, and iPads).  But, it still will not show up in the iTunes library list.  No matter what I do.  I can quit and relaunch iTunes, I can quit iTunes and open it back up with the "option" key to that I can specifcally choose that library, etc.  But, it never shows up in the list. I just upgraded to iTunes 10.6.1, and still, no dice.  It will not show up in the iTunes list, but I can still play it from shared iPhones, iPads, and AppleTVs.

Info:
Mac Pro, Mac OS X (10.7)