Google has a history of making their apps/channels work poorly on older Rokus. It was the first channel that ever gave me problems with my old Roku 2 XS, and was the reason I finally upgraded the player. I still have it, but it's in a drawer and no longer used. There's nothing Roku can do to make it better. And Google isn't going to care about a device that is now 7-9 years old (depending on which version of Roku 3 you have). Remember, Google sells a competing device, so they'll gladly sell you a Chromecast to improve your YouTube experience.
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