Chinese brand TCL will ship the first Roku TVs in spring 2016 that support 4K streaming. They'll deliver all of the numerous 4K apps found on the Roku 4 box, including the 4K versions of Netflix, Amazon Video, YouTube, Vudu, M-Go and UltraFlix, as well as the 4K Spotlight Channel with its curated collection of 4K content ( which currently excludes Netflix ) .

http://www.cnet.com/news/tcl-introduces-first-4k-roku-tv/