Do you have an email address associated with the free Peacock account (I assume it's your Xfinity email)? If so, go to the Peacock website (https://www.peacocktv.com/start ) and use that email address. You should get an email telling you how to complete the setup of your Peacock account and give you a password. You can then use that email address and password to sign in on any device.
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