Hi Joseph, We appreciate your feedback regarding your U7900F TV’s performance. If you're experiencing freezing or lag in general response time, please try the following steps: 1. Check for firmware updates – Keeping your TV up to date can resolve many performance issues: Home > left directional key > Settings > Support > Software Update > Update Now 2. Run Device Care – This tool checks system memory, frees up cached data, and closes background apps that could be slowing things down: Home > left directional key > Settings > Support > Device Care > Start Device Care 3. Cold boot your TV – With the TV powered on, press and hold the Power button on your remote for 5+ seconds until the TV restarts. This helps refresh the system. If you're still noticing performance snags after these steps, please contact Samsung Support at 1-800-SAMSUNG (8AM – 9PM EST Mon – Fri, 8AM – 6PM Sat – Sun). You can also connect with a LiveChat agent via the ‘Support’ link on our website. ~ Samsung Advisor

Hi Tanny, We’re sorry to hear that the picture on your Samsung U7900F TV appears too dark. If this isn’t meeting your expectations, there are several settings you can adjust to improve the overall brightness and clarity of your screen. First, try disabling certain energy-saving features that may be dimming the screen automatically. Go to: Settings > All Settings > General & Privacy > Power and Energy Saving, then turn off Brightness Optimization, Energy Saving Solution, Motion Lighting, and/or Contrast Enhancer. Next, adjust the Picture Mode to better match your viewing environment: Settings > All Settings > Picture > Picture Mode and choose from the following: • Dynamic – Brighter and clearer for well-lit rooms • Standard – Balanced for most environments • Movie – Ideal for watching in a dark room • Eco – Designed for energy savings • Filmmaker Mode – Preserves the creator’s original intent You can also manually adjust brightness by going to: Settings > All Settings > Picture > Expert Settings > Brightness. Use the slider to set a level that suits your preferences (0–50). Finally, we recommend making sure your TV has the latest software installed: Settings > Support > Software Update > Update Now We hope these tips help improve your viewing experience. If you need further assistance with setup or adjustments, feel free to contact Samsung Customer Support at 1-800-SAMSUNG (8AM – 9PM EST Mon – Fri, 8AM – 6PM Sat – Sun), or reach us via text anytime. You can also visit ‘Support’ on our website for: • Live Chat • Manuals, Software, & Warranty Info ~Samsung Advisor