It's an online subscriptions service. It's essentially like the NHL Network, but for lacrosse and not on television. They not only host current season games, but old seasons as well. Also, it's not only games, there are plenty of different analysis shows, news, and general lax entertainment. You can watch the channel live or go through their library of content and watch shit whenever. It's actually pretty great for what it is.
I know this might sound like some shill post, but it's not I promise. I'm not affiliated with them in anyway, I just found out about the service and have been watching it a ton since I signed up. I will even say nigger faggot fuck dykes laxsportsnetwork.com. I guess the heads at the MLL were tired of never being able to get their games on any major sports networks or at any reasonable times of day, so they took a page out of Trump's playbook and are bringing it straight to the people.