To activate Hulu on Roku, follow these steps. First, ensure your Roku device is connected to your TV and has internet access. Using the Roku remote, navigate to the Home screen and select "Streaming Channels." Search for Hulu and add the channel to your Roku. Once added, open the Hulu app. You'll see an activation code on the screen. On a computer or mobile device, go to hulu.com/activate and log in to your Hulu account. Enter the activation code displayed on your TV. Your Hulu account will sync with your Roku device, and you can start streaming. Make sure to include "hulu activate" as a keyword when searching for help.