Instructions
Log in to your PlayStation Network ID and press the "PlayStation" button on your controller to access the XMB menu.
Scroll to the "PlayStation Network" area of the XMB.
Scroll down and choose the "What's New?" section.
Choose "Netflix" and confirm the download when prompted. The application takes a few seconds to download and install.
Go to the "Video" section of the XMB after the Netflix application finishes downloading.
Scroll down and choose "Netflix." The application will load, and your console will display an activation code.
Visit Netflix.com/activate on your computer and log in to your Netflix account if prompted. An "Activate Now" field appears.
Enter your PlayStation 3's activation code and click "Activate Now." Your PlayStation 3 will automatically log in to your Netflix account after a few seconds.