user_45c2x9 Thank you so much for stopping in for help with getting your new 4k TV set up with your TV box. You can use the normal connection/Coax connection for a standard/HD picture. To be able to see the available 4k content in 4k with your new TV, you would need to be using an HDMI cable with one of our 4K TV boxes. Check out our [4K Support page](https://www.xfinity.com/support/articles/uhd-4k-faqs) to learn more. Also, keep in mind that not all content will be available in 4k. Let me know if you have any other questions.
XfinityAmandaB
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