Roku gets 4K content from Smithsonian; Encore, CW also sign up

It’s been a little more than a month since Roku debuted its 4K-capable Roku 4 set-top box, and now those early adopters have an all-4K-UHD channel to enjoy. Smithsonian Earth launched Tuesday for both the Roku and Apple TV; only the Roku box, however, is able to support 4K video. Users can try the network