Once the eShop loads, look for the Redeem Code option in the main menu. On the Switch 2, this appears in the left navigation ...
Go online and visit the manufacturer's official website to look for the "Support" or "Downloads" section. Use the search function on the website and enter your TV's model number. This should bring up ...
Want to redeem that shiny new Xbox Gift Card code? Maybe an Xbox Game Pass time card code? Perhaps it's even a new game?!