Roku streaming devices and TVs that run the company's namesake platform are among the most-loved home entertainment options as well as include the top CNET recommendations. There are a few items that you'll need to connect to your device, whether it's either a streaming stick or a box. For Roku, the Streaming Stick Plus we're using, as an illustration, you'll need to plug in the USB connection to power the Roku and then plug the Roku into the televisions HDMI slot. Power is powered by electricity. Streaming Stick can use a USB input to your TV, provided it has five volts or more in power (some manufacturers display the voltage in addition to the USB designation) to ensure that your Stick can have the best performance.