While the relations between Netflix and Verizon are not clear (see "The Post-Net Neutrality Era - Does Verizon Shape Netflix and Amazon?" here and "Netflix Reports Slower Speeds for Verizon" here), the future for Comcast customers looks much better, with no Net Neutrality issues (?). It seems that the bad days ("Netflix CEO: 'Comcast no longer following net neutrality principles'" - here) are over.
The giant MSO and the OTT provider announced a " .. mutually beneficial interconnection agreement that will provide Comcast’s U.S. broadband customers with a high-quality Netflix video experience for years to come. Working collaboratively over many months, the companies have established a more direct connection between Netflix and Comcast, similar to other networks, that’s already delivering an even better user experience to consumers, while also allowing for future growth in Netflix traffic. Netflix receives no preferential network treatment under the multi-year agreement, terms of which are not being disclosed".
See "COMCAST AND NETFLIX TEAM UP TO PROVIDE CUSTOMERS WITH EXCELLENT USER EXPERIENCE" - here.