If you’re ready to ditch the clunky, battery-powered remote, here’s what you need to do. Here’s how you can enable Alexa on various different devices. Also learn how to troubleshoot your Alexa. Now you should be able to say things like, “Alexa, show me action movies on Roku,” and see all of your choices without lifting a finger. Here’s how you can connect Alexa to most smart TVs: Once your Alexa account is paired with your TV, you should be able to control all of your streaming services using Alexa voice commands. You can say things like, “Alexa, open Disney+ on my smart TV”.