CBS All Access Help and Support FAQ Categories: About CBS All Access Big Brother Live Feeds CBS All Access Originals CBS All Access Movies SHOWTIME Add-on CBS All Access Subscribers SHOWTIME Subscribers Commercial Free Getting Started Troubleshooting My CBS All Access Account Gift Cards Most Recent Watching Live TV CBS All Access Live TV TV Provider Optimum Online Customers Amazon Prime Customers Supported Devices: Amazon Fire TV Android Android TV Apple TV Chromecast iPhone & iPad PlayStation 4 Roku Xbox 360 Xbox One Windows 10 Samsung TV All Access FAQ | » SHOWTIME Subscribers « 1 I'm a SHOWTIME customer who subscribed to CBS All Access via SHOWTIME. How do I activate my CBS All Access subscription? 2 I'm a SHOWTIME customer, but I'm having trouble signing in to CBS All Access. What's wrong? 3 I'm a SHOWTIME customer with a SHOWTIME gift card. Can I apply it towards my CBS All Access add-on? 4 I'm a SHOWTIME customer with the CBS All Access add-on. How can I get billing/account assistance? 5 I'm a SHOWTIME annual subscriber. Can I add CBS All Access to my SHOWTIME subscription? 6 I'm a SHOWTIME customer who just cancelled my CBS All Access add-on. When will the add-on end? 7 I'm a SHOWTIME customer who lives in Puerto Rico. Can I add CBS All Access to my SHOWTIME account?