How do i activate cnn on roku: To activate CNN on Roku, follow these simple steps: Connect Roku to Your TV: Connect your Roku device to your TV using an HDMI cable. Make sure the Roku is powered on and connected to the internet. Create a Roku Account: If you don't have a Roku account, visit the official Roku website (www roku com) using a web browser on your computer or mobile device. Click on "Sign in" and then select "Create account." Follow the on-screen instructions to set up your Roku account.