Step 1: Download and install iTunes Video Converter on your Mac.
Step 2: Click ?add files? button on the upper left, and then you will find your iTunes movies and TV shows from iTunes library. Choose the ones you want to remove DRM from.
Step 3: iTunes M4V Converter will preserve all original subtitles and audio tracks by default. You are free to select and preserve any one by clicking *.
Output M4P file will be saved to Documents - Converted by default. You can also change it as you like.
Step 4: Click "convert" button to start removing DRM from iTunes M4V movies/TV shows/movie videos. And soon you will get the DRM-free MP4 videos. Now enjoy them anywhere and anytime you want!