At first, to download PBS kids on Roku, you have to get the Roku home screen on your TV. Press the Roku home button and scroll to the left side of the TV screen. Search for the PBS kids channel among the famous streamers list or else type the name of the channel in the Find bar of the Roku channel store. Get the result and choose the Add channel option to download the channel. Finally, reach pbs.org/activate and enter the activation code that you get by accessing the channel on the Roku device. Choose your TV provider and click the Submit button.