http://m.ign.com/articles/2017/11/15/where-to-stre
Post# of 96879
UltraFlix only offers 4K content. The catch is it has different grades of 4K depending on the source material. Silver is 4K converted from an HD master, Gold is 4K from older material that was shot on film, and Platinum is content that was shot in 4K originally. There are over 600 hours of 4K content in total, with around 100 of those hours available at no charge. For the rest of the content they currently only have a 48-hour rental policy. Pricing is between $2 and $10 per title, and is dependent on how recently the title was released.