Ask anyone what the largest issue facing 4K video is, and youll likely be told that its distribution; Nevertheless, Netflix believes it will be able stream Ultra HD 4K videos to customers by next year, and its already testing the feature, according to Gigaom. In fact, you can watch Netflixs test footage now, as a number of 4K movies have hit the service for internal checks on 4K performance. Its worth noting that the movies are all made up of test footage, and 4K quality isnt an option yet for subscribers.