People who have purchased new 4K ultra-high-definition television sets will now have a supply of movies to show on them. Sony on Wednesday unveiled a new service called Video Unlimited which currently offers about 70 movies and TV shows for rent or download in the 4K format (four times the resolution of HDTV). They require a special 4K Ultra HD Media Player that carries a suggested retail priceag of $699. The films can be rented online for $7.99 or purchased for $29.99. TV shows are expected to rent for $3.99 per episode.