Sling is a streaming service that PlayStation 4 owners can use to watch live or on-demand TV shows and movies. Sling also offers a variety of add-ons, such as HBO Now, which lets you watch HBO programming without commercials. To get Sling on your PlayStation 4, you first need to sign up for a Sling account. Once you have signed up, you will be able to access your account information and sign in. To start watching TV shows and movies through Sling, you will need to add the appropriate channels to your account. Once you have added the channels that you want to watch, you can start watching by clicking on the “Watch Now” button on the main screen of your Sling account. You can also watch TV shows and movies through Sling by using the “Sling TV” app on your device.