We have a room as such at our home and it has no windows. Home is approx. 2 years old. It is on the second floor and has (3) other bedroom locations on that floor.

There is a smoke detector inside the room and opposite the door to the room.

A true theatre room is not going to have a window it in it as the daylight obstructs the screen.

In the homes in the Dallas area that I personally inspect, I'm not seeing windows in the theatre rooms. They are not bedrooms.

rick