Before activating Peacock on your Apple TV, you need a Peacock account. If you don’t have it, simply create an account by signing up with your email at Peacock’s official website. Follow the below steps to connect peacocktv.com/tv to Apple Devices.

First, locate the Peacock TV channel app in Apple App Store on your Apple TV.
Install the app by selecting the install button.
Launch the Peacock tv app you just installed and sign in with your Peacock TV credentials(create one by visiting peacocktv.com).
If you do have an account, you may use an activation code to activate peacock tv on your Apple TV as well.
Go to peacock.com/tv on a web browser and enter the 6-digit activation code shown on our TV.
After entering the code, select continue. The peacock TV app will reload and you will be able to access it on your Apple TV once again.