Hi JM HERNANDO MS, To assist you in learning the various features, functions, and settings of your Q80D TV and remote, you can download the Q80D 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 select the Q8D TV under QLED 4K TVs > D Model Lineup to download the guides you would like. The e-Manual and Remote Guide are both also embedded into the 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 Advisor

Harry, It’s unfortunate to hear of your experience with Samsung’s Q80DD TV. Samsung is committed to providing the best possible product experience, quality, and value. We back this Samsung TV with a 1-year limited manufacturer's warranty, including authorized repair for manufacturer defect, if purchased brand-new directly from an authorized seller. You can enter your model number to review the full warranty details here: https://www.samsung.com/us/support/legal/LGL10000312/#standard-limited-warranty Please give us the opportunity to assist you by contacting Samsung Customer Support 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

Hi, Thank you for purchasing Samsung's Q80D TV and for your feedback on the sound. To ensure you’ve got the latest sound quality updates, please confirm that your TV is up to date with the latest firmware version. You can check by going to: Home > Menu > Settings > Support > Software Update. If the sound is still not to your liking after updating firmware, there are several sound settings you can adjust to suit your personal preferences. • Sound Modes may better meet your personal preferences. Go to: Menu > Settings > All Settings > Sound > Sound Mode, or Expert Settings to fine-tune and customize your sound. • Adaptive Sound will also further optimize sound quality by analyzing the viewing space and the acoustic components of the content. Go to: Menu > Settings > All Settings > General & Privacy > Intelligent Mode Settings. Should you choose to add a Samsung Soundbar to your TV, please know that our Q-Series Soundbars (such as the HW-Q600C) feature Q-Symphony which will synchronize with the speakers of your TV for an immersive 3D sound experience. To assist you with possible sound settings adjustments for a better audio experience or choosing a Samsung Soundbar to complement your viewing enjoyment, please reach out to us at 1-800-SAMSUNG, 8 AM - 12 AM EST, seven days a week. ~ Samsung Specialist