To activate Xfinity streaming on your TV, follow these steps. Firstly, ensure your TV is connected to the internet. Then, visit xfinity.com/authorize on a computer or mobile device. Enter the activation code displayed on your TV screen. Log in to your Xfinity account if prompted. Follow the on-screen instructions to complete the activation process. Once done, your TV will be ready to stream Xfinity content. Remember to refresh or restart your streaming device if activation doesn't occur immediately. Enjoy a vast array of shows, movies, and more with Xfinity streaming directly on your TV.