Timothy, The DU6900 does not have voice assistants built in, but they do work with external voice assistants like Alexa. You can connect them to your existing Alexa device to ask them to turn on your TV, change channels, control volume, and more. Our DU8000 TV Series and above offer voice command and built-in voice assistants. If you have an external voice assistant connected to your DU6900 TV, I would recommend configuring the sensitivity settings. If you need additional help or would like our assistance troubleshooting, please 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

SamsungTv, I’m sorry to hear about the issues you’ve experienced with Samsung’s DU6900 TV. Your feedback regarding image quality is essential to us and will be shared with our internal teams. If the image you’re seeing isn’t to your liking, there are several picture settings you may want to adjust. Go to Home > left direction button > Settings > All Settings > Picture > Picture Mode and select the mode that best fits your usage: 1. Standard: Is the default mode suitable for general viewing environments 2. Dynamic: Makes the picture brighter and clearer in bright viewing environments 3. Eco: Provided to save energy 4. Movie: Suitable for watching TV or movies in a dark room 5. Filmmaker Mode: Provides source content just as the creators intended. If the image is defined as Filmmaker Mode, it’ll automatically switch to Filmmaker Mode while watching. You can also fine-tune your picture with expert settings such as brightness, contrast, sharpness and more (All Settings > Picture > Expert Settings). For further assistance with settings adjustments and to troubleshoot your glitching issue, please contact Samsung Customer Support 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