There are a few reasons why you may not be able to uninstall Netflix on your Samsung smart TV. The most likely reason is that Netflix is integrated into the operating system of your TV and cannot be uninstalled like a normal app. Another possibility is that your TV is set up to automatically update apps, so even if you uninstall Netflix, it may just reinstall itself the next time your TV updates its apps. Finally, it's also possible that your TV's warranty does not allow you to uninstall Netflix, as it is considered a pre-installed app.