While Amazon Prime Video does include certain on-demand sports channels, such as MLB.TV and NBA League Pass, the only live sports available are select NFL Thursday Night Football games. The service also includes UFC Fight Pass, which features over 200 fights from across the world. Amazon says it will continue to add more live events in 2018, including Major League Baseball, National Basketball Association, and the NHL. The company has been trying to compete with Netflix by offering exclusive content that is not available on its competitor. For example, Amazon Prime Video users can watch "Avengers: Infinity War" one day before it comes out on DVD. In addition to movie and TV show rentals, Amazon Prime members can listen to hundreds of thousands of songs through their devices, download books, and access special offers from Amazon's affiliate partners. Prime membership costs $10 per month or $120 per year. It provides free two-day shipping for items purchased online, a streaming video service with more than 6,000 hours of content, a book reading app with more than 300,000 titles, and access to special offers from Amazon's affiliate partners. There are two main types of subscriptions used in the media industry: monthly subscriptions and yearly subscriptions.