Who Ya Gonna Call? The sign writers who do the work for the New York subway, that’s who … as part of the promotion for the new Ghostbusters movie that’s on at the moment, the concourse at Waterloo station has been given over to many promotional materials, one of which is a New York Subway ticket booth, complete with a sign giving theĀ actual information for the tube at Waterloo, but just down in New York Subway style, and it’s wonderful…