NHL network will have the rest beside the three that NESN will have.
NESN only has 2 games. NHLN will have 3 games, but that includes the 2 that NESN has (probably NESN's feed, and probably blacked out for us). So, altogether, we only get 3 of the 7 games.
RDS is showing this game, but aside from that, the other 3 games are completely blacked out, visually speaking. I think we've got radio coverage for all the games, but radio coverage of sports is like video coverage of a concert without audio.
Playing devil's (aka NESN's) advocate:
1) Baseball tomorrow. Who knew the Sox would be in a race to the bottom?
2) NESN+ probably costs money to open up.
3) Crew. They could piggyback and split costs for cameras with RDS. Stick Jack and Brick in a dark NESN studio in Boston to do commentary - don't even have to fly them out to the Belle Center. No intermission interviews - spend some time covering the off-season using pre-taped segments, perhaps. Or maybe an extra Sal's Pizza commercial.
4) Blackout rules? Can't imagine the Canadiens don't sell this one out. Some of the other teams might have more difficulty, particularly if there are other sporting events (ie baseball) nearby. No problem here in Boston, though - for the Caps game on Wednesday, there's only a smattering of "official" tickets available.