How to activate History Channel on different platforms/devices?

To activate History Channel on your new device, follow these simple steps:
Use a smartphone, computer, or tablet to visit the activation page.
Select your device that you are activating.
Now select your TV provider.
Enter the activation code that appeared on the screen of your device.
Verify your subscription by clicking on continue.
Log in with your TV provider account.

How to activate the NBC app on a new device?

First, download the application on your device. Open the app and follow the steps below to get the activation code on your device. Once you have the activation code, follow these steps to activate your new device:
Go to nbc.com/activate.
Enter your activation code.
Select Continue.
Your device is now activated. Now, login with your TV provider credentials and you can start streaming right away.