CNBC reports: “MSG Networks, James Dolan’s cable-TV channels that feature local New York and New Jersey professional sports games, is launching its own streaming service. MSG+ will launch this summer with games for the NBA’s New York Knicks, as well as the NHL’s New York Rangers, Buffalo Sabres and New Jersey Devils. The streaming service will cost $29.99 a month, or $309.99 annually, according to a company release on Wednesday.”