IRVING, Texas— Following failed negotiations for a new retransmission consent agreement, 63 local TV stations in 42 markets owned by Nexstar Media Group were blacked out on Altice USA’s Optimum-branded cable systems around the country. The blackout began at 5 p.m. on Jan. 10 and also included Nexstar’s national cable news network, NewsNation.

Altice, which counts key cable systems in New York as part of its Optimum service, is also in a carriage dispute with MSG Networks, led by James L. Dolan, whose family used to operate Cablevision, which Altice purchased in 2015 for $17.7 billion. Altice USA is based in Long Island, New York.

Nextstar and Optimum have reached a carriage deal that will restore programming to Altice customers in the United States, the companies announced Saturday. The deal comes days after NewsNation and network and local programming provided by 63 of Nexstar Media Group’s television stations in 42 markets went dark.

Altice had removed all Nexstar programming from Optimum in the New York area on Jan. 10. in a carriage dispute.

Altice USA has sent a letter to the Federal Communications Commission complaining about Nexstar’s handling of retransmission consent negotiations, which recently led to a blackout of 63 Nexstar stations in 42 of the cable operator’s Optimum markets.

Nexstar Media Group local stations and cable network NewsNation went dark due to the carriage dispute. Like other pay-TV operators, Altice has struggled with cord-cu