Hi, Thank you for your feedback. If your remote isn’t responding, here are a few quick steps to help determine if it’s working correctly: 1. Check the batteries: Remove the back cover of your remote and replace the batteries with a fresh set, ensuring they are inserted in the correct direction. 2. Test for infrared signal: Point the front of the remote at your smartphone camera. While holding down any button, you should see a flashing light through the camera screen. (For iPhone users, the front-facing camera works best.) If you see the light, your remote is working and may need to be re-paired with your TV. 3. Point the remote correctly: Try pointing the remote directly at the TV from about 5-6 feet away. This can help ensure a clearer signal between the remote and the TV. 4. Clean the remote: Gently wipe the top edge of the remote (where the infrared sensor is located) with a soft, dry cloth to remove any dust or debris that could interfere with functionality. If you still need assistance, please contact Samsung Support at 1-800-SAMSUNG (8AM – 9PM EST Mon – Fri, 8AM – 6PM Sat – Sun), or visit the ‘Support’ link on our website to start a LiveChat session. ~ Samsung Advisor

Hi Solo Gent, Thank you for sharing your thoughts on the available inputs for the U7900F. If an Optical port is a crucial part of your setup needs, you’ll find that connection starting with our QN70F Series and above. For future purchases, we recommend double-checking the product specs on Samsung's site to ensure the model you choose has the ports you need. You can find this by clicking on “Specs” (just beneath the Product Title), then "See All Specs" for the full list of available inputs and more: https://www.samsung.com/us/tvs/uhd-4k-tv/65-inch-class-crystal-uhd-u7900f-4k-smart-tv-sku-un65u7900ffxza/ Should you ever need assistance with your TV, Samsung is here for you. Reach out by calling 1-800-SAMSUNG (8AM – 9PM EST Mon – Fri, 8AM – 6PM Sat – Sun). You can also chat with us online by visiting the ‘Support’ section of our website. ~ Samsung Advisor