I bought this television from the pawn shop and I’m trying to get channels and it wants a 4 digit pin and I have no clue how to make a new pin. Can anyone help me please?
Create an account at https://my.roku.com and then perform a factory reset on the TV:
https://support.roku.com/article/208757008-How-to-factory-reset-before-returning-selling-or-gifting
Once that's complete you can link the TV to your account by going to https://roku.com/link