I previously purchased the bundle through How do I activate my subscription on Paramount+?

If you previously subscribed to the bundle through SHOWTIME (this version of the bundle is still supported, but it is no longer an option for new subscribers) and you have not yet activated your subscription on Paramount+, we encourage you to cancel your existing SHOWTIME streaming subscription through SHOWTIME and subscribe to the new Paramount+ with SHOWTIME plan through Paramount+.

You will then be able to stream both SHOWTIME and Paramount content through the Paramount+ app or website.