Bill, If you are hearing a loud static noise, it could be caused by electrical feedback. I recommend the following: 1) Arranging the cables and making sure the TV has good ventilation will keep it quiet. 2) Check the cables. Make sure all cables are connected firmly to the proper, color-coded inputs on the TV and on the external devices. 3) Replace the audio connection cable, even if it is an HDMI or RF coaxial cable. Then test again to see if the issue still occurs. 4) Try connecting a different external device to the same input on the TV. Connect a different device to the same input on the TV using the same connection cables. For example, if a cable box is connected using the component connections, try connecting a DVD player to the same input with the same cables. If there is no buzzing, crackling, or humming with the second external device connected, the original device (the cable box in this example) is the source of the noise. To troubleshoot your HDMI connection, please try the following: 1) Power off all HDMI devices connected to the TV 2) Disconnect all HDMI cables from the TV 3) Power off and unplug the TV's power cord from the wall outlet 4) Press and hold the TV power button for 30 seconds 5) Reconnect HDMI cables back to the HDMI ports on the TV 6) Replug the TV's power cord back into the wall outlet and check the TV. If you need further assistance, please get in touch with us at 1-800-SAMSUNG, 8 AM - 12 AM EST, seven days a week. Our LiveChat agents are also available by clicking on the ‘Support’ link on our website. ~ Samsung Pro

Expanderbg, Thank you for choosing the Samsung DU6900 TV and for taking the time to provide us with detailed feedback on your experience. Your opinion is important to us and will be shared with our internal product teams. The DU6900 TV offers 2 HDMI ports and is Bluetooth and Wi-Fi capable, allowing a seamless connection across multiple devices at a time. If your external device requires an Optical port, we recommend utilizing an HDMI to Optical Converter. These can be found at your local electronics store. Please also keep in mind that an Optical port can be found on our DU8000F Series and above. If you need further assistance, we would be happy to help! Please feel free to contact Samsung Support at 1-800-SAMSUNG, available from 8 AM to 12 AM EST, seven days a week. You can also chat with us on Samsung.com for immediate assistance. ~Samsung Pro

Hello, I’m sorry to hear about the issues you’ve experienced with Samsung’s DU6900 TV. Your feedback is important to us and will be shared with our product teams. We'd love to help troubleshoot this issue! Please call us at 1-800-SAMSUNG, 8 AM - 12 AM EST, seven days a week. Or visit us on the Samsung website and click on the ‘Support’ link for: 1) LiveChat 2) Manuals, Software, & Warranty Info ~ Samsung Pro