Learn how to sign out of your Netflix account on a SmartTV, digital media device (like Roku or Apple TV), or game console (like Xbox or PlayStation). You just need to find the Sign out option, which is in the settings menu.
Steps

Step 1. Open Netflix on your TV
The process to follow may differ depending on the TV, but most often you will need to select the application Netflix with your remote control. You will be taken to the Netflix home page.

Step 2. Go left to open the menu
The main menu is hidden when you are on the home screen. You should be able to navigate to the left by pressing the left arrow or directional buttons on your remote or controller.
If you don't see the menu, go up to open it

Step 3. Choose Settings or the gear
Options will appear. A confirmation menu will appear. You will be immediately logged out of your Netflix account.
Step 4. Select Sign Out
Step 5. Select Yes to confirm your choice