I also live on the other side of the atlantic, but I watch every game of the Knicks. This year with the league pass, it wasn't expensive at all so I definitely bought it. Last year via torrent, I've found a tremendous torrent site where all the games are available, so you could find ways to watch them every time even in Europe dude ! Depends on if you are a true fan or not
As for your question I would vote for the 21th where we will beat down the champs'.