Here is another article specifically about house lights- http://www.pbs.org/newshour/updates/when-theres-an-active-shooter-can-lighting-save-lives/I'm at a roadhouse on a university campus and we recently had the police department lead a training for staff from all of the performance venues on...
I am in a 2400 seat proscenium theater-- We just switched from an IR system to a FM system. The rake in our house wasn't significant enough to give good line of sight to the IR emitters. Also, depending on the type of shows you have, some will use IR for the stage manager's camera which can...