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 | » CBS All Access Subscribers « 1 Can I get the SHOWTIME add-on with annual plans? 2 What is the SHOWTIME add-on, and what do I get with it? 3 How much does the SHOWTIME add-on cost? 4 If I add SHOWTIME during my CBS All Access free trial period, do I also get a free trial of SHOWTIME? 5 If I cancel my CBS All Access subscription, will my SHOWTIME subscription also be canceled? 6 On what devices can I watch SHOWTIME? 7 I signed up for CBS All Access through a third party (iTunes/Google Play/Roku). Can I add SHOWTIME to my subscription? 8 Where do I go to activate my SHOWTIME subscription? 9 How can I cancel my SHOWTIME subscription? 10 How and when will I be billed for the SHOWTIME add-on?