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Your TV doesn't support network functions. However, you can get an Amazon Fire stick which will allow you to access Netflix, Hulu, Pandora, Amazon Prime, and many other channels. Click here. This plugs into your TV's HDMI port, and you can access the internet channels easily.
Let me know if you have any questions. Please don't forget to rate my service with 3-5 stars so I receive credit for helping you. If you were getting Netflix before, please tell me which device you were using to get Netflix.