Hi Lpatel, thank you for reaching out. We're here to help. Could you please tell us more about the situation? Get in touch at 1-800-SAMSUNG or via live chat on our website (http://www.samsung.com/ca/support/) 

Ibrahim88, I am sorry that you are experiencing stalling and freezing with your TU7000 TV. To optimize the smart TV performance, please try Device Care option under the Support Menu. Go to Settings > Support> Device Care > Start Device Care. This service checks memory and frees up unused cached memory and closes background apps. I hope this helps to solve your concerns. If the issues persist, please reach out to Samsung Customer Support at: 1) Phone: 1-800-SAMSUNG (ask for TVs) Available 8AM - 12AM EST (Mon-Fri) / 9AM - 11PM EST (Sat-Sun) 2) LiveChat: https://www.samsung.com/us/support/#contact_us_for_support 3) Facebook Messenger: https://www.facebook.com/samsungsupport 4) Twitter: https://twitter.com/SamsungSupport Have you registered your new Samsung TV with us? If not, we invite you to do so at: https://www.samsung.com/us/account/signin/?redirect=https%3A%2F%2Fwww.samsung.com%2Fus%2Fsupport%2Fregister%2F, and gain access to easy warranty support, convenient opt-in to special promos & offers, faster troubleshooting & service, and quick notification of system updates. -Samsung Ambassador  

Hi there, Thank you for sharing your experience with Internet connectivity. If you’re experiencing issues with the Wi-Fi connection, we suggest you try the following: 1. Use 5Ghz Wi-Fi if possible 2. Try wired LAN if available 3. Try repositioning the router so there are no obstacles between your TV and the router Please also be sure you are running the latest firmware. You can check to see what software version your TV is using and if there is an available update through the settings on your TV. Go to: Settings > Support > Software Update. You can enable automatic updates for convenience. Go to Settings > Support > Software Update, then select Auto Update. I hope these tips help resolve your concerns. If you continue to have issues, 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 Advisor

DANIEL: Thank you for purchasing the Samsung TU7000 and for your review. I am very sorry you are viewing scenes that appear too dark. A new firmware update has been released to address this issue. You may also need to manually reboot your TV after the update by either unplugging the AC cord or by pressing and holding the power button on the remote until the TV powers off and back on. Using your TV's remote, navigate to Settings, and select Support. Select Software Update, and then select Update Now. New updates will be downloaded and installed on your TV. Updates usually take a few minutes; please do not turn off the TV until the update is complete. When the update is finished, the TV will restart automatically. If there aren't any new updates, select OK to exit. You may want to enable automatic updates for convenience. Select Settings > Support > Software Update, then select Auto Update. If you would like to update your software using USB, please check for the latest version on the Samsung website. If you need further assistance or have any questions, please contact Samsung Customer Support. Available at 1-800-SAMSUNG (8AM -12AM EST, 7 days a week) Or visit us on the Samsung website and click on the SUPPORT link in the upper right corner for: 1) Contact Us Options (LiveChat, Remote Support, Facebook, Twitter) 2) Product Support 3) Manuals and Downloads 4) Warranty Info 5) Product Registration: Registering your product gives you access to easy warranty support, convenient opt-in to special promos and offers, faster troubleshooting and service, and quick notification of system updates 6) Samsung Community: A great resource for getting help from Samsung moderators and customers and more 7) …and more product, repair, order, and care options Again, thank you for taking the time to share your thoughts on this product. Your feedback helps us continuously deliver best-in-class products and service. ~ Samsung Solutions