Just keep following the given steps below: 1. Start the PlayStation and go to the Store Play section. 2. On the PlayStation, look for and install the Twitch TV app. 3. On your desktop, go to twitch.tv/activate and sign up using your Twitch account credentials. 4. The activation code must be taken into consideration. It would have been a six-digit number. 5. On your PlayStation, open the app, sign in with your credentials, and input the code.