Time Warner Cable subscribers, longtime victims of poor customer service, may believe any takeover of their pay-TV company is good news.

Well, they better think again.

Both Charter, which has reached a deal to buy TWC for $57 billion, and the New York cable company saw their customer satisfaction scores decline in 2014, according to the American Customer Satisfaction Index.

In pay-TV service, Charter scored the second worst with 60 points — equivalent to Comcast, and just ahead of TWC’s 56. AT&T’s UVerse finished No. 1, with a 69.

In one embarrassing Charter episode, a company customer service rep refused to disconnect the service of a recently deceased grandma because the rep couldn’t speak directly to her, according to a post on Charter’s Facebook page made by a relative Tuesday.

As a broadband provider, Charter didn’t fare much better — its rating dropped 6.2 percent in 2014. It came in third from the bottom, beating Comcast and last-place TWC. Verizon FiOS topped the list.

“For the $30 billion in cash alone Charter is offering up to [TWC] and Bright House the company could pass at least 45 million homes with gigabit fiber infrastructure,” Derek Turner, a research director at Free Press, an open internet group, told The Post.