i rarely take the B or Q line - but when i do this is always a treat! the "masstransitscope" is an animation painted and lit up on the tunnel walls.  as you can see it comes to life while the train is in motion. i really love this thing - it almost makes up for the fact that the B and Q seems to run so infrequently that i usually wind up waiting 15 minutes for my train. even during rush hour. every cloud has a silver lining!