To watch Disney Plus videos on your TV without activation, you can use a streaming device like Roku, Amazon Fire Stick, or Chromecast. Simply connect your device to the TV, install the Disney Plus app, and sign in to your account. You can also use Smart TVs that have the Disney Plus app pre-installed. No additional activation steps are required. Alternatively, connect your laptop or mobile device to the TV using an HDMI cable and stream directly from there. For more details on setting up, visit disneyplus.com/begin and follow the instructions provided.