Hi Viewer, Thank you for sharing your experience. Buffering during streaming is typically related to internet speed or signal strength. This can happen when your connection isn’t able to deliver data quickly enough for smooth playback. We recommend the following steps to help improve streaming performance: 1. Use a 5GHz Wi-Fi connection, if available 2. Try a wired LAN connection for more stability 3. Reposition your router to minimize obstacles between it and the TV 4. Make sure your TV is running the latest firmware (Settings > Support > Software Update) 5. Run Device Care to optimize performance: Home > left directional key > Settings > Support > Device Care > Start Device Care If buffering continues, you may want to contact your internet service provider to check your current speed or explore upgrade options. If we can assist further, please call us at 1-800-SAMSUNG, available from 8AM – 9PM EST Mon – Fri, 8AM – 6PM Sat – Sun seven days a week. You can also connect with a LiveChat agent by clicking the ‘Support’ link on our website. ~ Samsung Advisor

Hi Bsaathoff73, Thank you for your feedback on the lip sync issues you're experiencing with your Samsung U7900F TV. This may be related to the content source, but if you're noticing the audio delay across all sources or channels, especially when using an external speaker setup (soundbar, receiver, etc.), there are a few settings that may help: 1. Adjust Digital Audio Delay. You can manually increase the audio delay to better match the video: Settings > All Settings > Sound > Expert Settings > Digital Output Audio Delay 2. Enable Audio Pass-Through. Samsung TVs include an audio pass-through option, which sends the audio signal directly to your connected soundbar or receiver without additional processing by the TV. This can reduce delay when using external audio devices: Settings > All Settings > Sound > Expert Settings > Digital Audio Output Format > Pass-Through 3. Check for Firmware Updates. Ensure your TV is running the latest software, which may include performance improvements related to sound or sync: Home > left directional key > Settings > Support > Software Update > Update Now If the issue continues after these steps, please contact Samsung Support for additional troubleshooting or assistance. We’re here to help at 1-800-SAMSUNG (8AM – 9PM EST Mon – Fri, 8AM – 6PM Sat – Sun). LiveChat and additional support resources are also available through the Support link on our website. ~Samsung Advisor