Robert W, We appreciate you sharing the issues you’re experiencing when connecting your DU6900 TV to your cable box. Please go to the Connection Guide for details: Source > Connection Guide. Make sure that your external device is connected securely and turned on. Move to Sources to switch to other input sources: Source > Sources. Using HDMI Troubleshooting, you can check the connection to HDMI cable and external devices (takes approx. 2 minutes). Source > Connection Guide > Video Device > HDMI Troubleshooting, Also, please check the broadcast signals or the network that is connected to your cable box. For further assistance, please know we’re here to help. You can call 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

Helron, Thank you for taking the time to provide feedback on your DU6900 TV. Please know that your feedback will be shared with our internal product teams. We take pride in our products and are sorry to hear that your experience was not up to our high standards. The standard remote included with the DU6900 TV does not feature voice controls, but the TV can be control with voice commands as it is compatible with voice assistants like Alexa and Bixby. To adjust the Sound Settings, go to Settings > All Settings> Sound > Sound Mode. You can also customize the sound with Expert Settings by going to Settings > All Settings> Sound > Expert Settings. I hope these tips help you enjoy your new product. You can contact us for further help 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

Jean, Thank you for sharing your user experience. To assist you in learning the various features, functions, and settings of your TV and remote, you can download the DU6900 TV's User Manual, e-Manual, Remote Control Leaflet, and Quick Setup Guide on Samsung's website under ‘Support’ (top right corner) > Manuals & Software > TVs & Home Theater. From there, you can search for and select the DU6900 TV to download the guides you would like. The e-Manual and Remote Guide are both also embedded into your TV itself under Menu > Settings > Support If you need more help, Samsung is here for you. Please call us at 1-800-SAMSUNG, 8AM - 12AM EST, 7 days a week. Our LiveChat agents are also available by clicking on the ‘Support’ link on our website. ~ Samsung Specialist