I've always found it a little odd the amount of
attention that these live streaming cable TV services like YouTube TV, PS Vue, etc. receive over at Cord Cutters News and on other cord-cutter-centric sites and forums. Pretty sure over the past few years that the majority of those cutting the cord on traditional cable/satellite services have NOT been turning to a streaming replacement service but rather simply to on-demand streaming services like Netflix and HBO Now (sometimes in combination with free OTA TV). And then there's a growing number of "cord-nevers," young adults forming households (e.g. post-college) who never sign up for any kind of live cable TV service in the first place.
As long as live cable TV service remains a thing, I expect that the great majority of those who subscribe to it will get it from the same company that sells them internet service. Although, as two of the nation's biggest internet providers, AT&T and Comcast, get into the OTT streaming video business, I think the line will blur somewhat in terms of whether the live cable TV services they offer are "traditional cable TV" or "streaming cable TV". I do think it's likely that many smaller broadband providers, and possibly even larger ones like Charter and
Verizon, ultimately shut down their own first-party cable TV services and instead strike deals to sell the streaming cable TV and on-demand services run by other companies to their broadband customers.