Netflix has the most 4K content available to consumers, and recently just added the hit show The Blacklist and the kid-friendly Smurfs 2 to the list. What else is great about the plan is it allows 4 devices to play simultaneously, compared to just 2 for the standard plan.
Currently, the company requires you to have a minimum of 25 Mbps download speed, and a 4K TV from a limited list from Samsung, LG, Sony, and Vizio. The content may not be worth the extra $4 to some, as the only content available now are Breaking Bad, the latest season of original series House of Cards, Ghostbusters, Ghostbusters 2, a nature documentary and the aforementioned Blacklist and The Smurfs 2.
(Pic via FPHD)