"This broad agreement will ensure that Cablevision customers will continue to have access to the CBS programming they already enjoy, across a range of networks, as
well as new services Cablevision will launch in the coming months, including Showtime Anytime and CBS prime time shows on demand, said Mac Budill, Cablevisions executive vice president of programming."
»img.optimum.net/images/feedmill/ ··· tact.pdf
I found that .pdf in the optimum.net announcements section. It seems like that HBO GO deal really got the ball rolling for the other premium channels.