FREE HBO, Showtime, Starz, Cinemax & CBS 7-Day Trials (Amazon Prime)

[MrsGuin]

Make sure you have an Amazon Prime account first.

Pick any channels you want to start trials for here:
Start your Showtime trial
Start your Starz trial
Start your Cinemax trial
Start your CBS All Access trial
Start your HBO trial

You can manage your subscriptions under your account then look for “Manage Your Prime Video Channels” (or click here when logged in)