Per various deals to offer the iPhone with certain cellular plans, Apple is making Comcast and Charter sell other Apple devices too (via CNBC).
Other Devices
Charter and Comcast offer wireless service as part of an agreement with Verizon, using a mobile virtual network operator (MVNO). These two companies decided they couldn’t offer a competitive service without the iPhone, which gives Apple a bit of leverage in negotiations.
Exact details of these deals aren’t known, but Comcast has to sell a certain number of subsidized iPads. Comcast pays for the difference between the retail price and the subsidized price. For example, Comcast sells the 6th generation 32 GB 9.7-inch cellular iPad for $422.99. Apple and Charter sell the same device for $459. Comcast also sells Apple Watches.
Charter sells Apple TVs at $7.50 per month for 24 months — or $180, the retail cost of an Apple TV. Alternatively, a customer can lease a Charter set-top box for $7.50 per month. In other words, Charter offers an Apple TV at the same price as a Charter set-top box, but a customer ends up owning the Apple TV and returning the Charter box.
Further Reading:
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There still is no Comcast Xfinity Stream TV App for the Apple TV. You’re currently forced to use the IOS App for Xfinity Stream TV. Other issue is that any streaming done through the Apple TV counts towards your 1TB data cap for the month. Ideal situation is buying Apple TV from Comcast with access to Stream TV App and data consumed by the Apple TV does not count towards monthly 1TB data Cap.