But won't work with protected video purchased from the iTunes Store.For those that prefer to read their television and movies - c’mon, it’s as close as some of us get to literature - Apple’s been supporting subtitles and captions in its software and on its devices for a while now. Unfortunately, despite that, there are very few videos on the iTunes Store that actually include this information (I found just 138 movies with captions out of the thousands on the store).