Did you watch er?
Have you ever noticed the lighting on tv shows? Specifically dramas?
We like NCIS and CSI. West Wing and er are two others that had the same thing happen to their lighting.
The more these shows got popular, the more the lighting became dramatic. It started out bright and over-lit. As the episodes turned into seasons, the rooms got darker.
Have you been in a courthouse or a hospital? They are typically well-lit. Especially the hallways, and even at night the lights are on.
It's not like the story line explained the change in lighting. It just happened, slowly over time.
Of course I say this as I sit here watching one of these shows in a low-lit room.
Maybe Hollywood isn't so dramatic after all.