How to Play Videos in iTunes
iTunes allows you to store and play videos, just like songs and audio books. To play a video in iTunes, just select it in your library and then click the Play button.
iTunes is versatile when it comes to playing videos — the TV shows, movies, video podcasts, and music videos you downloaded from the iTunes Store as well as the video files you dragged into iTunes from other sources.
Select a video in your library, and then click the Play button. Use the iTunes Play/Pause, Forward/Next, and Previous/Rewind buttons to control playback, and the iTunes volume slider to control the volume, just like with songs.
The video appears in the Artwork pane in the lower-left corner of the iTunes window, as shown in the following figure. If the Artwork pane isn’t visible, clicking the video makes it appear. You can also make the Artwork pane appear or disappear by clicking the Show/Hide Artwork button.
You can view your video in four ways:
In a separate window at different sizes.
Inside the iTunes window.
Filling the entire computer display.
On a TV.