To activate the history channel on the Roku, then you need to launch the channel app from the Roku channel hub. To activate the channel, you need to link the tv provider to the history channel app. After you link the channel to the tv provider, you will get the code on the screen of the tv. Browse to the history.com/activate to site. Provide the code on the site and start to stream the content on the history channel. For more information on the history channel activation, get in touch with our expert team@+1-877-991-8710.