Dish Network is ready to tread new ground with its internet-only Sling TV service, but what about folks who want the highest quality video and are willing to pay for it? It will join the 4K party this summer with an upgraded Joey extender that not only tosses Ultra HD video around, but is also so slim it can be wall-mounted behind compatible TVs. The dual-core ARM processor inside is even powerful enough that it can toss up two HD streams side by side. Sure, Dish is coming in later than competitors Comcast and DirecTV, but so far those two are only working with a limited set of TVs, like Samsung and LG. The 4K Joey works with any UHD TV with HDMI 2.0 and HDCP 2.2.