Roku is one of the most famous streaming device manufacturers in the world who provides us many streaming devices like Roku HD and Roku Streaming Stick+. Roku provides us with an amazing combination of hundreds of marvelous TV channel apps and add-ons like HBO Go, ABC, Starz, Showtime Anytime, Netflix, YouTube, CW, ESPN, PBS, Fx Networks, etc. which we can add to our Roku streaming device and stream up to 4K capabilities. You would only be able to stream TV shows in 4k on Roku if your TV is 4K compatible. The company provides a free HDMI extender to its customers to increase the length of their HDMI ports from the back of their TVs to the point from where they can easily use their IR Roku remote. In order to watch or stream a channel on your Roku, you first need to link your Roku device to a Roku account by visiting roku.com/link. Once the roku.com/link account validation is done, your Roku device is ready to stream your favorite TV shows and movies till your heart's content.