Don’t call MASN a part-time net anymore. On Mon, it began a 24-hour programming schedule. In addition to Nationals programming and rebroadcasts of games, MASN will carry 4 Baltimore Ravens preseason football games, and Ravens pre- and post-game shows. It will simulcast ESPN Radio in Baltimore and carry NCAA Div I football, basketball and lacrosse. Meanwhile, the net faces a Fri deadline for deciding whether an administrative law judge or an arbitrator should hear its ongoing spat with Comcast over distribution (one of the MSO’s beef’s was that MASN’s a part-time net).