Roku made a 4K streaming stick

Fresh off a successful IPO, Roku is keen to keep the momentum going. And what better way to do that than to launch a set of new devices, packed with a bunch of free (ad-supported) channels. The company tends to refresh its line-up in the fall, and this year is no exception. As rumored, there's a 4K streaming stick, but that's not all. Roku is also upgrading its budget line-up, slashing the price of its top-tier device (the Roku Ultra), and giving its Roku OS a fresh coat of paint.