Rev. - watch online: streaming, buy or rent
Currently you are able to watch "Rev." streaming on Britbox Apple TV channel, BritBox, BritBox Amazon Channel or buy it as download on Amazon Video, Apple TV Store, Fandango At Home.
Besides streaming, you can also buy the series on DVD from Amazon DVD / Blu-ray and watch it anytime.
You can also stream the title for free on Hoopla.
