This shouldn’t come as much of a surprise, but Netflix is already testing out 4K video streaming. Most of us don’t have 4K TVs and may not be able to afford them for at least a few years. (Some consumers haven’t had their HDTVs for all that long yet.)
Still, Netflix wants to ensure that it has something ready for when 4K TV becomes mainstream. That said, it’s still difficult to consistently stream 1080p. As CultofMac says, “Netflix can’t yet reliable stream 1080p content to most devices, so 4K seems ambitious.” Personally, it’s worked fine for us on the devices that support it, but at least Netflix is starting sooner rather than later.