Isn't the accomodation to pay the $5 per month for a second box? Or do you just not want to be in the basement?
The way the season is going, you won't want to watch every game anyway. I listen to about half of them on the radio. That way, I can do something else at the same time... the beauty of radio.
We have yet to work out an accomodation that is mutually satisfactory. I can tell you this is going to be a point of contention until we can figure something out. We have one TV in the master bedroom, and the other is in the (cold) basement. My wife is not going to watch the Colbert Report or M*A*S*H in the basement, I can assure you.
But as much as I loathe MASN, having the Nats available on TV is a good thing.