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I read: //Do I need to provide a credit card number to credit Netflix gift cards to my account?
No. Just go to netflix.com/redeem . Carefully scratch the PIN code on the back of the card with a coin and insert it. If you already have a Netflix account, follow the instructions above to redeem gift cards in your account. If you are not yet a Netflix customer, you can register easily. All you need is a gift card, an e-mail address, a password, and your zip code, and you can watch shows and movies.//
But if I give my email address how would this relate to my smart TV, does it mean I can only watch on my computer?