omedy improv group Jump on 3 was created in March 2010, when a group of improvisers met at the Upright Citizen’s Brigade in Chelsea. After searching the city for a performance spot, they finally found what struck them as an ideal space at Under St. Mark’s, an underground theater at 94 St. Marks Place.
http://eastvillage.thelocal.nytimes.com/2011/02/09/jumping-improv-under-st-marks/
