https://techcrunch.com/2018/08/02/amazon-prime-video-is-coming-to-comcasts-cable-boxes/

Comcast and Amazon today announced a new partnership that will see Amazon’s Prime Video service integrated into Comcast’s Xfinity TV set-top boxes. This is the first time that Prime Video content would be added to a cable operator’s platform in the U.S.. It’s also a particularly interesting choice on Comcast’s part,  given that Amazon is directly competing with pay TV providers through its Prime Video Channels a la carte TV subscriptions. And these will be available to Comcast’s customers via the Xfinity X1 set-top box as a result of this deal.

Today, Amazon offers over 160 premium Prime Video channels, including HBO, Showtime, Starz, Cinemax and others that have been previously sold as add-ons to cable TV subscriptions. Being able to access to these channels over-the-top – without a traditional TV subscription – is one of several factors that have convinced some consumers to cut the cord with cable TV entirely.