All my videos are stored on an Airport disk which works fine - except when I import a new video to my iTunes library - it won't show-up on my Apple TV. I've just imported The Simpsons Movie which will play fine on my MacBook Pro but it just won't show-up in the list of movies on my ATV. I restarted both my Mac and the Apple TV but it still wasn't there. In the end I had to re-setup the Apple TV and re-link it with my iTunes library. Surely there's an easier way?!